diff --git a/.gitignore b/.gitignore
index 67439e8c..addc23cb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 HELP.md
 .gradle
 .envrc
+.omx/
 build/
 !**/src/main/**/build/
 !**/src/test/**/build/
diff --git a/.opencode/commands/commit.md b/.opencode/commands/commit.md
index 0528089b..06cedcac 100644
--- a/.opencode/commands/commit.md
+++ b/.opencode/commands/commit.md
@@ -15,7 +15,8 @@ subtask: true
 1. 로드한 `commit-policy` 스킬의 Hard Requirements와 Execution Flow를 그대로 수행한다.
 2. `AGENTS.md`의 최소 정책(형식/한글 description/검증 스크립트)을 항상 만족한다.
 3. `$ARGUMENTS`가 있으면 scope 또는 description 의도에 반영하되, 스킬 규칙과 형식을 깨지 않는다.
-4. 마지막에 실행 명령과 pre-check/post-check PASS/FAIL 핵심 결과를 간단히 보고한다.
+4. 가능하면 메시지 파일을 검증한 뒤 같은 파일을 `git commit -F`에 전달해 검증을 통과한 메시지를 그대로 사용하고, `Ultraworked with [Sisyphus]...` 및 `Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>` 라인이 본문에 추가되지 않도록 확인한다.
+5. 마지막에 실행 명령과 pre-check/post-check PASS/FAIL 핵심 결과를 간단히 보고한다.
 
 추가 사용자 의도:
 $ARGUMENTS
diff --git a/.opencode/skills/commit-policy/SKILL.md b/.opencode/skills/commit-policy/SKILL.md
index b13180e7..505a5fdd 100644
--- a/.opencode/skills/commit-policy/SKILL.md
+++ b/.opencode/skills/commit-policy/SKILL.md
@@ -20,6 +20,7 @@ Use this workflow whenever the task includes creating a commit.
 4. Optional footer must use `Refs: #123` or `Refs: #123, #456` format.
 5. Never commit secret files (`.env`, key/token/secret credential files).
 6. Never bypass hooks with `--no-verify`.
+7. Never include `Ultraworked with [Sisyphus]...` or `Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>` in the commit body.
 
 ## Execution Flow
 
@@ -31,12 +32,13 @@ Use this workflow whenever the task includes creating a commit.
 2. Stage commit target files only. Exclude suspicious secret-bearing files.
 3. Draft commit message from the change intent (focus on why, not only what).
 4. Run pre-commit validation with the full draft message:
-   - `./work/scripts/check-commit-message-rules.sh --message "<full message>"`
+    - `./work/scripts/check-commit-message-rules.sh --message "<full message>"`
 5. If validation fails, revise message and re-run until PASS.
-6. Commit using the validated message.
+6. Prefer validating a message file with `./work/scripts/check-commit-message-rules.sh --message-file <message-file>` and commit with the same file via `git commit -F <message-file>` so the exact validated message is reused unchanged.
 7. Run post-commit validation:
-   - `./work/scripts/check-commit-message-rules.sh`
-8. Report executed commands and PASS/FAIL summary.
+    - `./work/scripts/check-commit-message-rules.sh`
+8. If post-commit validation fails because an automatic footer was appended, stop and report the failure instead of treating the commit as valid.
+9. Report executed commands and PASS/FAIL summary.
 
 ## Output Checklist
 
@@ -44,3 +46,4 @@ Use this workflow whenever the task includes creating a commit.
 - Whether pre-check passed.
 - Whether post-check passed.
 - Any excluded files and reason.
+- Whether forbidden Sisyphus footer lines were absent in the final commit body.
diff --git a/AGENTS.md b/AGENTS.md
index a679c05e..01e1a3c8 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -113,17 +113,20 @@
 - `type`은 소문자(`feat`, `fix`, `chore`, `docs`, `refactor`, `test` 등)를 사용한다.
 - 제목(description)은 한글로 작성하고, 명령형/간결한 현재형으로 작성한다.
 - 이슈 참조 footer는 `Refs: #123` 또는 `Refs: #123, #456` 형식을 사용한다.
+- 커밋 본문에는 `Ultraworked with [Sisyphus]...` 및 `Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>` 자동 footer를 포함하지 않는다.
 
 ### 커밋 메시지 검증 절차
 - `git commit` 실행 직전에 `work/scripts/check-commit-message-rules.sh`를 실행해 규칙 준수 여부를 확인한다.
 - `git commit` 실행 직후에도 `work/scripts/check-commit-message-rules.sh`를 다시 실행해 최종 메시지를 재검증한다.
 - 스크립트 결과가 `[FAIL]`이면 커밋 메시지를 규칙에 맞게 수정한 뒤 다시 검증한다.
+- 커밋 실행 시 검증한 메시지를 그대로 사용하고, 도구 기본 footer가 자동 추가되지 않도록 최종 커밋 본문을 확인한다.
 
 ## 작업 절차 체크리스트
 - 변경 전: 유사 기능 코드를 먼저 찾아 네이밍/예외/응답 패턴을 맞춘다.
 - 변경 중: 공개 API 스키마를 임의 변경하지 말고, 작은 단위로 안전하게 수정한다.
 - 변경 후: 최소 단일 테스트 또는 `./gradlew test`를 실행하고, 필요 시 `./gradlew ktlintCheck`를 수행한다.
 - 커밋 전/후: `commit-policy` 스킬을 먼저 로드하고, `git commit` 직전과 직후에 `work/scripts/check-commit-message-rules.sh`를 실행해 커밋 메시지 규칙 준수 여부를 확인한다.
+- 커밋 전/후 확인 시 Sisyphus attribution footer가 없는지 함께 검증한다.
 
 ## 작업 계획 문서 규칙 (docs)
 - 모든 작업 시작 전에 `docs` 폴더 아래에 계획 문서를 먼저 생성하고, 해당 문서를 기준으로 구현을 진행한다.
diff --git a/docs/20260402_AI캐릭터본인인증국가별분기적용.md b/docs/20260402_AI캐릭터본인인증국가별분기적용.md
new file mode 100644
index 00000000..137c88c4
--- /dev/null
+++ b/docs/20260402_AI캐릭터본인인증국가별분기적용.md
@@ -0,0 +1,22 @@
+- [x] chat 패키지의 AI 캐릭터 상세/채팅 본인인증 적용 지점을 확인한다.
+- [x] 기존 캐릭터 상세의 국가별 본인인증 분기 방식을 확인한다.
+- [x] chat 패키지의 AI 캐릭터 및 AI 캐릭터 채팅 로직에 동일한 국가별 인증 방식을 반영한다.
+- [x] 변경 사항에 대한 진단 및 관련 검증을 수행한다.
+
+## 검증 기록
+
+### 1차 구현
+- 무엇을: `ChatRoomController`, `ChatQuotaController`, `ChatRoomQuotaController`의 본인인증 체크를 `member.auth` 직접 검사에서 `MemberContentPreferenceService.getStoredPreference(member).isAdult` 기반 국가별 판정으로 변경했다.
+- 왜: AI 캐릭터 상세와 동일하게 한국은 본인인증이 필요하고, 그 외 국가는 저장된 성인 노출 설정 기준으로 접근하도록 맞추기 위해서다.
+- 어떻게:
+  - `./gradlew compileKotlin` → 성공
+  - `./gradlew test` → 성공
+  - 변경 컨트롤러 3개에서 `member.auth == null` 직접 검사가 제거되고 `resolveIsAdultAccessible(...)`로 치환된 것을 확인함
+
+### 2차 수정
+- 무엇을: `OriginalWorkController`의 목록/상세 본인인증 체크도 동일한 국가별 판정으로 변경했다.
+- 왜: `chat/original` 하위에 `member.auth` 직접 검사 잔여 지점이 남아 있어, 최초 요청 범위인 `chat` 패키지 전체 기준으로 정책이 완전히 일치하지 않았기 때문이다.
+- 어떻게:
+  - `./gradlew compileKotlin` → 성공
+  - `./gradlew test` → 성공
+  - `src/main/kotlin/kr/co/vividnext/sodalive/chat` 전체에서 `member.auth == null|member?.auth != null` 검색 → 결과 없음
diff --git a/docs/20260402_audio_content_banner_lang_ddl.sql b/docs/20260402_audio_content_banner_lang_ddl.sql
new file mode 100644
index 00000000..6e73b150
--- /dev/null
+++ b/docs/20260402_audio_content_banner_lang_ddl.sql
@@ -0,0 +1,41 @@
+SET @schema_name := DATABASE();
+
+SET @lang_column_exists := (
+    SELECT COUNT(1)
+    FROM information_schema.columns
+    WHERE table_schema = @schema_name
+      AND table_name = 'content_banner'
+      AND column_name = 'lang'
+);
+
+SET @add_lang_column_sql := IF(
+    @lang_column_exists = 0,
+    'ALTER TABLE content_banner ADD COLUMN lang VARCHAR(10) NULL COMMENT ''배너 노출 언어'' AFTER type',
+    'SELECT ''content_banner.lang already exists'' AS message'
+);
+
+PREPARE add_lang_column_stmt FROM @add_lang_column_sql;
+EXECUTE add_lang_column_stmt;
+DEALLOCATE PREPARE add_lang_column_stmt;
+
+UPDATE content_banner
+SET lang = 'KO'
+WHERE lang IS NULL;
+
+SET @lang_column_nullable := (
+    SELECT IS_NULLABLE
+    FROM information_schema.columns
+    WHERE table_schema = @schema_name
+      AND table_name = 'content_banner'
+      AND column_name = 'lang'
+);
+
+SET @alter_lang_column_sql := IF(
+    @lang_column_nullable = 'YES',
+    'ALTER TABLE content_banner MODIFY COLUMN lang VARCHAR(10) NOT NULL DEFAULT ''KO'' COMMENT ''배너 노출 언어 (KO 기본, EN/JA 추가 가능)''',
+    'SELECT ''content_banner.lang already normalized'' AS message'
+);
+
+PREPARE alter_lang_column_stmt FROM @alter_lang_column_sql;
+EXECUTE alter_lang_column_stmt;
+DEALLOCATE PREPARE alter_lang_column_stmt;
diff --git a/docs/20260402_chat_character_banner_lang_ddl.sql b/docs/20260402_chat_character_banner_lang_ddl.sql
new file mode 100644
index 00000000..1c5ffebc
--- /dev/null
+++ b/docs/20260402_chat_character_banner_lang_ddl.sql
@@ -0,0 +1,41 @@
+SET @schema_name := DATABASE();
+
+SET @lang_column_exists := (
+    SELECT COUNT(1)
+    FROM information_schema.columns
+    WHERE table_schema = @schema_name
+      AND table_name = 'chat_character_banner'
+      AND column_name = 'lang'
+);
+
+SET @add_lang_column_sql := IF(
+    @lang_column_exists = 0,
+    'ALTER TABLE chat_character_banner ADD COLUMN lang VARCHAR(10) NULL COMMENT ''배너 노출 언어'' AFTER sort_order',
+    'SELECT ''chat_character_banner.lang already exists'' AS message'
+);
+
+PREPARE add_lang_column_stmt FROM @add_lang_column_sql;
+EXECUTE add_lang_column_stmt;
+DEALLOCATE PREPARE add_lang_column_stmt;
+
+UPDATE chat_character_banner
+SET lang = 'KO'
+WHERE lang IS NULL;
+
+SET @lang_column_nullable := (
+    SELECT IS_NULLABLE
+    FROM information_schema.columns
+    WHERE table_schema = @schema_name
+      AND table_name = 'chat_character_banner'
+      AND column_name = 'lang'
+);
+
+SET @alter_lang_column_sql := IF(
+    @lang_column_nullable = 'YES',
+    'ALTER TABLE chat_character_banner MODIFY COLUMN lang VARCHAR(10) NOT NULL DEFAULT ''KO'' COMMENT ''배너 노출 언어 (KO 기본, EN/JA 추가 가능)''',
+    'SELECT ''chat_character_banner.lang already normalized'' AS message'
+);
+
+PREPARE alter_lang_column_stmt FROM @alter_lang_column_sql;
+EXECUTE alter_lang_column_stmt;
+DEALLOCATE PREPARE alter_lang_column_stmt;
diff --git a/docs/20260402_live_recommend_creator_banner_lang_ddl.sql b/docs/20260402_live_recommend_creator_banner_lang_ddl.sql
new file mode 100644
index 00000000..32f72030
--- /dev/null
+++ b/docs/20260402_live_recommend_creator_banner_lang_ddl.sql
@@ -0,0 +1,41 @@
+SET @schema_name := DATABASE();
+
+SET @lang_column_exists := (
+    SELECT COUNT(1)
+    FROM information_schema.columns
+    WHERE table_schema = @schema_name
+      AND table_name = 'recommend_live_creator_banner'
+      AND column_name = 'lang'
+);
+
+SET @add_lang_column_sql := IF(
+    @lang_column_exists = 0,
+    'ALTER TABLE recommend_live_creator_banner ADD COLUMN lang VARCHAR(10) NULL COMMENT ''배너 노출 언어'' AFTER is_adult',
+    'SELECT ''recommend_live_creator_banner.lang already exists'' AS message'
+);
+
+PREPARE add_lang_column_stmt FROM @add_lang_column_sql;
+EXECUTE add_lang_column_stmt;
+DEALLOCATE PREPARE add_lang_column_stmt;
+
+UPDATE recommend_live_creator_banner
+SET lang = 'KO'
+WHERE lang IS NULL;
+
+SET @lang_column_nullable := (
+    SELECT IS_NULLABLE
+    FROM information_schema.columns
+    WHERE table_schema = @schema_name
+      AND table_name = 'recommend_live_creator_banner'
+      AND column_name = 'lang'
+);
+
+SET @alter_lang_column_sql := IF(
+    @lang_column_nullable = 'YES',
+    'ALTER TABLE recommend_live_creator_banner MODIFY COLUMN lang VARCHAR(10) NOT NULL DEFAULT ''KO'' COMMENT ''배너 노출 언어 (KO 기본, EN/JA 추가 가능)''',
+    'SELECT ''recommend_live_creator_banner.lang already normalized'' AS message'
+);
+
+PREPARE alter_lang_column_stmt FROM @alter_lang_column_sql;
+EXECUTE alter_lang_column_stmt;
+DEALLOCATE PREPARE alter_lang_column_stmt;
diff --git a/docs/20260402_관리자채팅배너목록언어표기추가.md b/docs/20260402_관리자채팅배너목록언어표기추가.md
new file mode 100644
index 00000000..0f3c1af2
--- /dev/null
+++ b/docs/20260402_관리자채팅배너목록언어표기추가.md
@@ -0,0 +1,10 @@
+- [x] 배너 목록 조회 응답 생성 경로와 언어 정보 위치를 확인한다.
+- [x] 배너 목록 응답의 연결 캐릭터 이름에 배너 등록 언어를 `(언어)` 형식으로 추가한다.
+- [x] 변경 파일 기준으로 검증을 수행하고 결과를 기록한다.
+
+## 검증 기록
+
+### 1차 구현
+- 무엇을: 관리자 배너 목록 조회 응답에서 연결 캐릭터 이름 뒤에 배너 등록 언어를 `(언어)` 형식으로 붙이도록 수정했다.
+- 왜: 같은 이름과 같은 이미지의 배너라도 등록 언어가 다르면 관리자 페이지에서 즉시 구분할 수 있어야 하기 때문이다.
+- 어떻게: `./gradlew test --tests "kr.co.vividnext.sodalive.admin.chat.AdminChatBannerControllerTest"` 실행으로 컨트롤러 테스트를 검증했고, 새 테스트에서 목록 조회 응답 이름이 `character-12 (일본어)`로 반환되는 것을 확인했다. 결과는 `BUILD SUCCESSFUL`이다.
diff --git a/docs/20260402_라이브추천크리에이터언어적용.md b/docs/20260402_라이브추천크리에이터언어적용.md
new file mode 100644
index 00000000..02b9b749
--- /dev/null
+++ b/docs/20260402_라이브추천크리에이터언어적용.md
@@ -0,0 +1,11 @@
+- [x] 추천 크리에이터 배너 등록·조회 경로와 언어 처리 기준을 확인한다.
+- [x] 추천 크리에이터 등록 API에 `lang` 파라미터를 추가하고 `Lang` 기준으로 저장하도록 수정한다.
+- [x] 관리자 추천 크리에이터 목록은 전체 언어를 유지하고, `LiveApiService.fetchData`의 추천 크리에이터 조회는 사용자 언어에 맞는 배너만 반환하도록 수정한다.
+- [x] 변경 파일 기준으로 검증을 수행하고 결과를 기록한다.
+
+## 검증 기록
+
+### 1차 구현
+- 무엇을: 추천 크리에이터 배너 엔티티와 관리자 등록 API에 `lang`을 추가하고, 라이브 메인 `fetchData` 및 `/live/recommend` 조회가 현재 요청 언어와 일치하는 배너만 조회하도록 수정했다. 운영 반영용으로 `recommend_live_creator_banner.lang` 컬럼 DDL 문서도 추가했다.
+- 왜: 관리자에서는 언어별 추천 크리에이터 배너를 등록할 수 있어야 하고, 사용자 라이브 화면에서는 자신의 언어와 맞는 추천 크리에이터만 노출되어야 하기 때문이다. 관리자 목록 API는 기존처럼 전체 언어 배너를 그대로 조회해야 한다.
+- 어떻게: Kotlin LSP가 없어 정적 진단은 Gradle 검증으로 대체했고, `./gradlew test --tests "kr.co.vividnext.sodalive.admin.live.AdminLiveServiceTest" --tests "kr.co.vividnext.sodalive.live.recommend.LiveRecommendServiceTest" --tests "kr.co.vividnext.sodalive.live.recommend.LiveRecommendRepositoryTest"`로 소문자 `lang` 저장, 서비스 언어 전달, 언어별 추천 배너 조회를 검증했다. 이어서 `./gradlew ktlintCheck`와 `./gradlew build`를 실행했고 모두 `BUILD SUCCESSFUL`이다.
diff --git a/docs/20260402_시리즈배너언어별조회적용.md b/docs/20260402_시리즈배너언어별조회적용.md
new file mode 100644
index 00000000..fe218b3c
--- /dev/null
+++ b/docs/20260402_시리즈배너언어별조회적용.md
@@ -0,0 +1,10 @@
+- [x] 시리즈 배너 등록·조회 경로와 언어 처리 기준을 확인한다.
+- [x] 배너 등록 시 언어를 저장하고 관리자 목록에서 시리즈 제목에 `(언어)` 표기를 추가한다.
+- [x] 사용자 시리즈 메인 조회에서 요청 언어와 일치하는 배너만 반환하도록 수정하고 검증 결과를 기록한다.
+
+## 검증 기록
+
+### 1차 구현
+- 무엇을: 시리즈 배너 등록 요청에 `lang`을 추가하고, 관리자 목록에서는 `seriesTitle (언어)` 형태로 응답하며, 사용자 시리즈 메인에서는 `LangContext`와 일치하는 언어 배너만 조회하도록 수정했다.
+- 왜: 관리자 화면에서는 같은 시리즈명의 다국어 배너를 구분할 수 있어야 하고, 사용자 화면에서는 요청 언어와 맞는 배너만 노출되어야 하기 때문이다.
+- 어떻게: Kotlin LSP가 없어 정적 진단은 Gradle 컴파일로 대체했고, `./gradlew test --tests "kr.co.vividnext.sodalive.content.series.main.banner.ContentSeriesBannerServiceTest" --tests "kr.co.vividnext.sodalive.admin.content.series.banner.AdminContentSeriesBannerControllerTest" --tests "kr.co.vividnext.sodalive.content.series.main.SeriesMainControllerTest"`를 실행해 등록 언어 저장, 관리자 목록 언어 표기, 사용자 언어별 배너 조회를 검증했다. 결과는 `BUILD SUCCESSFUL`이다.
diff --git a/docs/20260402_오디오콘텐츠배너언어적용.md b/docs/20260402_오디오콘텐츠배너언어적용.md
new file mode 100644
index 00000000..81b459bf
--- /dev/null
+++ b/docs/20260402_오디오콘텐츠배너언어적용.md
@@ -0,0 +1,11 @@
+- [x] 오디오 콘텐츠 배너 등록·조회 경로와 언어 처리 기준을 확인한다.
+- [x] 배너 등록 API에 `lang` 파라미터를 추가하고 지원 언어를 `Lang` 기준으로 저장하도록 수정한다.
+- [x] 관리자 배너 목록은 전체 언어 배너를 유지하고, HomeService `fetchData`는 사용자 언어와 일치하는 배너만 조회하도록 수정한다.
+- [x] 변경 파일 기준으로 검증을 수행하고 결과를 기록한다.
+
+## 검증 기록
+
+### 1차 구현
+- 무엇을: 오디오 콘텐츠 배너 엔티티와 등록 요청에 `lang`을 추가하고, 홈 `fetchData`에서 현재 사용자 언어를 넘겨 해당 언어 배너만 조회하도록 수정했다. 운영 반영용으로 `content_banner.lang` 컬럼 DDL도 추가했다.
+- 왜: 관리자 등록 시 언어별 배너를 구분해 저장해야 하고, 홈에서는 사용자 언어와 맞는 배너만 노출되어야 하기 때문이다. 관리자 목록 API는 기존처럼 언어 전체 배너를 그대로 조회해야 한다.
+- 어떻게: Kotlin LSP가 없어 정적 진단은 Gradle 컴파일/테스트로 대체했고, `./gradlew test --tests "kr.co.vividnext.sodalive.admin.content.banner.AdminContentBannerServiceTest" --tests "kr.co.vividnext.sodalive.content.main.banner.AudioContentBannerRepositoryTest" --tests "kr.co.vividnext.sodalive.api.home.HomeServiceTest"`로 등록 언어 저장, 언어별 배너 조회, 홈 언어 전달을 검증했다. 이어서 `./gradlew ktlintCheck`를 실행해 스타일 검증까지 확인했고 두 명령 모두 `BUILD SUCCESSFUL`이다.
diff --git a/docs/20260402_일본어채팅캐릭터배너추가.md b/docs/20260402_일본어채팅캐릭터배너추가.md
new file mode 100644
index 00000000..d1e6011e
--- /dev/null
+++ b/docs/20260402_일본어채팅캐릭터배너추가.md
@@ -0,0 +1,25 @@
+- [x] ChatCharacterBanner 엔티티에 한국어 기본 배너와 일본어/영어 배너를 구분할 언어 필드를 유지한다.
+- [x] 관리자 배너 등록 API가 기본언어 한국어를 기본값으로 사용하고, 일본어/영어 배너도 등록할 수 있도록 요청값과 서비스 로직을 수정한다.
+- [x] 캐릭터 메인 배너 조회가 요청 언어 배너를 우선 조회하고, 없으면 한국어 배너를 fallback 하도록 수정한다.
+- [x] 관련 테스트 또는 검증을 수행하고 결과를 기록한다.
+- [x] 관리자 배너 등록 요청의 `lang`이 ISO 639 언어코드(`ko`, `en`, `ja`)로 들어와도 `Lang` enum으로 역직렬화되도록 수정한다.
+
+## 검증 기록
+
+### 1차 구현
+- 무엇을: 채팅 캐릭터 배너를 기본 배너와 일본어 배너 행으로 분리해 저장하도록 `lang` 필드를 추가하고, 관리자 등록 API와 메인 배너 조회 로직을 일본어 기준으로 분기했다. 운영 반영용 MySQL DDL 문서 `docs/20260402_chat_character_banner_lang_ddl.sql`도 함께 추가했다.
+- 왜: 현재 배너 구조는 이미지 1개 기준 행 모델이라 동일 목적지에 여러 언어 이미지를 한 레코드에 묶는 것보다, 언어별 행 분리가 기존 정렬/활성화/수정 흐름을 가장 적게 건드리는 방식이기 때문이다.
+- 어떻게: `./gradlew test --tests kr.co.vividnext.sodalive.chat.character.service.ChatCharacterBannerServiceTest`로 서비스 분기와 언어 검증을 확인했고, `./gradlew test --tests kr.co.vividnext.sodalive.admin.chat.AdminChatBannerControllerTest --tests kr.co.vividnext.sodalive.chat.character.controller.ChatCharacterControllerTest --tests kr.co.vividnext.sodalive.chat.character.service.ChatCharacterBannerServiceTest`로 등록 API와 메인 조회 API 흐름을 실행 검증했다. 이어서 `./gradlew ktlintCheck`, `./gradlew build`를 실행했다.
+- 결과: 지정한 테스트는 모두 성공했고, `ktlintCheck`와 `build`도 모두 성공했다. Kotlin LSP 서버가 없어 `lsp_diagnostics`는 수행할 수 없었다.
+
+### 2차 수정
+- 무엇을: 배너 기본언어를 명시적 `KO`로 변경하고, 등록 가능 언어를 `KO`, `EN`, `JA`로 확장했다. 또한 메인 배너 조회는 요청 언어 배너가 없을 때 `KO` 배너로 fallback 하도록 수정했고, MySQL DDL도 `NULL -> KO` 데이터 정규화와 `NOT NULL DEFAULT 'KO'`로 보강했다.
+- 왜: 기본 배너를 `null`로 해석하는 방식보다 `KO`를 명시 저장하는 방식이 등록 규칙과 조회 fallback 규칙을 더 일관되게 표현하고, 영어 배너 추가 요구사항도 자연스럽게 수용할 수 있기 때문이다.
+- 어떻게: 서비스 로직과 테스트를 `KO/EN/JA` 기준으로 재작성하고, 관리자 등록 API 기본값과 메인 조회 경로를 대상으로 단위 테스트를 추가·수정했다. 이후 `ktlintCheck`, 대상 테스트, 전체 빌드를 다시 실행했다.
+- 결과: `./gradlew test --tests kr.co.vividnext.sodalive.chat.character.service.ChatCharacterBannerServiceTest --tests kr.co.vividnext.sodalive.admin.chat.AdminChatBannerControllerTest --tests kr.co.vividnext.sodalive.chat.character.controller.ChatCharacterControllerTest`, `./gradlew ktlintCheck`, `./gradlew build`를 모두 실행했고 전부 성공했다. 관리자 등록 테스트에서는 `lang`이 없을 때 `registerBanner(2L, "", null)` 호출이 발생하고 성공 응답이 반환되는 것을 확인했다. Kotlin LSP 서버는 없어 `lsp_diagnostics`는 이번에도 수행하지 못했다.
+
+### 3차 수정
+- 무엇을: `Lang` enum에 Jackson `@JsonCreator` 기반 역직렬화 진입점을 추가해 관리자 배너 등록 요청의 `lang`이 `ko`, `en`, `ja` 같은 ISO 639 코드로 들어와도 `Lang.KO`, `Lang.EN`, `Lang.JA`로 파싱되도록 수정했다. 기존 enum 이름(`KO`, `EN`, `JA`) 입력도 계속 허용했다.
+- 왜: 관리자 요청에서 `Lang` enum을 직접 받고 있으므로, 외부에서 ISO 639 코드 값을 보내더라도 별도 DTO 변환 없이 안전하게 처리되게 해야 하기 때문이다.
+- 어떻게: `Lang.fromCode(...)`를 Jackson 역직렬화 팩토리로 연결하고, 관리자 배너 컨트롤러 테스트 요청값을 `"ja"`로 바꿨다. 또한 `ObjectMapper().readValue(...)`로 `"en"` 입력이 실제 `Lang.EN`으로 역직렬화되는 테스트를 추가했다.
+- 결과: `./gradlew test --tests kr.co.vividnext.sodalive.admin.chat.AdminChatBannerControllerTest`, `./gradlew ktlintCheck`, `./gradlew build`를 실행했고 모두 성공했다. 관리자 배너 등록 테스트는 실제 요청 문자열 `{"characterId":1,"lang":"ja"}` 를 사용해 성공 응답과 `registerBanner(..., Lang.JA)` 호출을 확인했다. Kotlin LSP 서버는 없어 `lsp_diagnostics`는 수행하지 못했다.
diff --git a/docs/20260402_쿠폰사용본인인증예외추가.md b/docs/20260402_쿠폰사용본인인증예외추가.md
new file mode 100644
index 00000000..a3c81038
--- /dev/null
+++ b/docs/20260402_쿠폰사용본인인증예외추가.md
@@ -0,0 +1,10 @@
+- [x] `CanCouponService.useCanCoupon`의 기존 본인인증 요구 조건과 국가/성인노출 관련 패턴을 확인한다.
+- [x] 한국이 아닌 국가에서 `MemberContentPreference.isAdultContentVisibl`가 `true`이면 본인인증 없이 쿠폰 사용이 가능하도록 수정한다.
+- [x] 변경 파일 진단과 관련 검증을 수행하고 결과를 기록한다.
+
+## 검증 기록
+
+### 1차 구현
+- 무엇을: `CanCouponService.useCanCoupon`이 `MemberContentPreferenceService.getStoredPreference(member).isAdult`를 기준으로 쿠폰 사용 가능 여부를 판단하도록 수정하고, 해당 분기 회귀 테스트를 추가했다.
+- 왜: 한국 사용자는 기존처럼 본인인증이 필요하고, 한국이 아닌 사용자는 성인 노출 설정이 `true`이면 본인인증 없이 쿠폰을 사용할 수 있어야 하기 때문이다.
+- 어떻게: `./gradlew test --tests "kr.co.vividnext.sodalive.can.coupon.CanCouponServiceTest"` 실행 성공, `./gradlew ktlintCheck` 실행 성공.
diff --git a/docs/20260403_메시지전송username추가.md b/docs/20260403_메시지전송username추가.md
new file mode 100644
index 00000000..d1787c67
--- /dev/null
+++ b/docs/20260403_메시지전송username추가.md
@@ -0,0 +1,15 @@
+- [x] sendMessage의 외부 채팅 API 호출 경로와 요청 payload 구성을 확인한다.
+- [x] 외부 `/api/chat` 요청 body에 `member.nickname`을 `userName` 파라미터로 전달하도록 수정한다.
+- [x] 변경 파일 기준으로 검증을 수행하고 결과를 기록한다.
+
+## 검증 기록
+
+### 1차 구현
+- 무엇을: `ChatRoomService.sendMessage`가 외부 `/api/chat` 호출 시 `member.nickname`을 `username` 파라미터로 함께 전달하도록 수정했다.
+- 왜: 외부 채팅 API가 사용자 닉네임을 함께 받아야 하는 요구사항을 기존 메시지 전송 흐름 안에서 최소 범위로 반영해야 했기 때문이다.
+- 어떻게: 내부 탐색으로 `/api/chat` payload 생성 위치가 `ChatRoomService.callExternalApiForChatSend`임을 확인한 뒤 `./gradlew compileKotlin`과 `./gradlew test`를 실행했고 둘 다 `BUILD SUCCESSFUL`이었다. 추가로 `./gradlew test --tests '*ChatRoom*'`를 시도했지만 해당 패턴의 테스트 클래스는 없어 필터 검증은 불가했다.
+
+### 2차 수정
+- 무엇을: 외부 `/api/chat` 요청 body의 키 이름을 `username`에서 `userName`으로 변경했다.
+- 왜: 외부 API 계약에서 사용자명 필드명이 camelCase인 `userName`으로 요구되기 때문이다.
+- 어떻게: `ChatRoomService.callExternalApiForChatSend`의 request body 키가 `"userName"`으로 생성되는 것을 코드에서 재확인했다. 이 환경에는 Kotlin LSP가 구성되어 있지 않아 별도 diagnostics는 수행할 수 없었고, 대신 `./gradlew compileKotlin test`를 실행해 `BUILD SUCCESSFUL`을 확인했다.
diff --git a/docs/20260406_omxgitignore.md b/docs/20260406_omxgitignore.md
new file mode 100644
index 00000000..1f2a8846
--- /dev/null
+++ b/docs/20260406_omxgitignore.md
@@ -0,0 +1,10 @@
+# `.omx/` Git 제외 처리
+
+- [x] `.gitignore`에 `.omx/`를 추가한다.
+- [x] `git status`와 `git check-ignore`로 제외가 정상 동작하는지 확인한다.
+
+## 검증 기록
+
+- 무엇을: `.gitignore`에 `.omx/`를 추가하고 `.omx/` 하위 파일들이 무시되는지 확인했다.
+- 왜: `.omx/`는 런타임 상태, 로그, 메트릭 파일이라 버전 관리 대상이 아니기 때문이다.
+- 어떻게: `git check-ignore -v .omx/tmux-hook.json .omx/state/hud-state.json .omx/logs/turns-2026-04-06.jsonl`로 무시 규칙을 확인했고, `git status --short`로 `.omx/`가 더 이상 추적 대상이 아니고 문서만 남는지 확인했다.
diff --git a/docs/20260407_audio_content_settlement_ratio_ddl.sql b/docs/20260407_audio_content_settlement_ratio_ddl.sql
new file mode 100644
index 00000000..b3e79ed2
--- /dev/null
+++ b/docs/20260407_audio_content_settlement_ratio_ddl.sql
@@ -0,0 +1,19 @@
+SET @schema_name := DATABASE();
+
+SET @settlement_ratio_column_exists := (
+    SELECT COUNT(1)
+    FROM information_schema.columns
+    WHERE table_schema = @schema_name
+      AND table_name = 'content'
+      AND column_name = 'settlement_ratio'
+);
+
+SET @add_settlement_ratio_column_sql := IF(
+    @settlement_ratio_column_exists = 0,
+    'ALTER TABLE content ADD COLUMN settlement_ratio INT NULL COMMENT ''콘텐츠별 정산 요율(%)'' AFTER price',
+    'SELECT ''content.settlement_ratio already exists'' AS message'
+);
+
+PREPARE add_settlement_ratio_column_stmt FROM @add_settlement_ratio_column_sql;
+EXECUTE add_settlement_ratio_column_stmt;
+DEALLOCATE PREPARE add_settlement_ratio_column_stmt;
diff --git a/docs/20260407_커밋footer자동추가차단.md b/docs/20260407_커밋footer자동추가차단.md
new file mode 100644
index 00000000..ee336ce9
--- /dev/null
+++ b/docs/20260407_커밋footer자동추가차단.md
@@ -0,0 +1,22 @@
+# 20260407 커밋 footer 자동 추가 차단
+
+## 구현 계획
+- [x] oh-my-openagent 기본 footer 동작과 저장소 로컬 커밋 워크플로우의 영향 범위를 문서화한다.
+- [x] `AGENTS.md`에 커밋 본문에서 Sisyphus footer와 자동 `Co-authored-by` 라인을 허용하지 않는 규칙을 추가한다.
+- [x] `.opencode/skills/commit-policy/SKILL.md`에 검증된 메시지를 그대로 `git commit`에 전달하고 자동 footer를 금지하는 절차를 반영한다.
+- [x] `.opencode/commands/commit.md`에 `/commit` 커맨드가 자동 footer 없는 최종 메시지를 사용하도록 지시를 보강한다.
+- [x] `work/scripts/check-commit-message-rules.sh`에 Sisyphus footer 및 자동 `Co-authored-by` 라인 차단 검증을 추가한다.
+- [x] 변경 문서와 스크립트에 대해 진단 및 실행 검증을 수행한다.
+
+## 검증 기록
+- [x] 작업 완료 후 검증 결과를 기록한다.
+
+- 1차 구현
+  - 무엇을: `AGENTS.md`, `.opencode/skills/commit-policy/SKILL.md`, `.opencode/commands/commit.md`, `work/scripts/check-commit-message-rules.sh`를 수정해 커밋 본문에서 `Ultraworked with [Sisyphus]...`와 `Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>` 자동 footer를 금지하고, `/commit` 경로가 검증된 메시지를 그대로 `git commit`에 전달하도록 명시했다.
+  - 왜: oh-my-openagent 기본 설정과 알려진 버그로 자동 footer가 붙을 수 있으므로, 저장소 로컬 규칙과 검증 스크립트에서 이를 명시적으로 차단해야 커밋 결과를 일관되게 통제할 수 있기 때문이다.
+  - 어떻게: `lsp_diagnostics`로 `AGENTS.md`, `.opencode/skills/commit-policy/SKILL.md`, `.opencode/commands/commit.md`, `work/scripts/check-commit-message-rules.sh`, `docs/20260407_커밋footer자동추가차단.md`에 대해 모두 `No diagnostics found`를 확인했다. `bash -n work/scripts/check-commit-message-rules.sh`로 문법을 검증했고, `./work/scripts/check-commit-message-rules.sh --message`로 정상 메시지/`Refs` footer 허용 케이스는 PASS, Sisyphus footer와 자동 `Co-authored-by` 케이스는 FAIL을 확인했다. 추가로 `./gradlew tasks --all` 실행 결과 `BUILD SUCCESSFUL`을 확인했다.
+
+- 2차 수정
+  - 무엇을: Oracle 검토 의견을 반영해 `.opencode/skills/commit-policy/SKILL.md`와 `.opencode/commands/commit.md`에서 `--message-file` 검증 후 같은 파일을 `git commit -F`에 전달하는 경로를 권장하도록 보강했고, `work/scripts/check-commit-message-rules.sh`의 `Co-authored-by` 차단 조건을 공백 변형까지 탐지하도록 확장했다.
+  - 왜: exact string 하나만 금지하면 footer 형식이 조금만 달라져도 놓칠 수 있으므로, 외부 기본 동작이나 버그로 인한 변형까지 더 안정적으로 차단해야 하기 때문이다.
+  - 어떻게: `lsp_diagnostics`로 `.opencode/skills/commit-policy/SKILL.md`, `.opencode/commands/commit.md`, `work/scripts/check-commit-message-rules.sh`에 대해 모두 `No diagnostics found`를 확인했다. `bash -n work/scripts/check-commit-message-rules.sh`를 다시 실행해 문법을 검증했고, `./work/scripts/check-commit-message-rules.sh --message`로 기본 메시지와 `Refs` footer는 PASS, Sisyphus footer/기본 `Co-authored-by`/공백 변형 `Co-authored-by` 케이스는 모두 FAIL을 확인했다.
diff --git a/docs/20260407_콘텐츠별정산요율추가.md b/docs/20260407_콘텐츠별정산요율추가.md
new file mode 100644
index 00000000..278bb95c
--- /dev/null
+++ b/docs/20260407_콘텐츠별정산요율추가.md
@@ -0,0 +1,85 @@
+- [x] 변수명 확정: 엔티티 내부 추가 변수는 `AudioContent.settlementRatio: Int?`로 사용한다.
+  - 이유: `AudioContent`는 이미 콘텐츠 도메인 엔티티이므로 `contentSettlementRatio`는 중복 표현에 가깝다.
+  - 근거: 이 저장소의 엔티티 필드는 `AudioContent.price`, `LiveRoom.price`, `CreatorCommunity.price`처럼 엔티티 스코프 안에서는 도메인 접두어를 반복하지 않는다.
+  - 예외 기준: `CreatorSettlementRatio.contentSettlementRatio`처럼 하나의 엔티티 안에서 `live/content/community` 여러 정산 대상을 함께 구분해야 할 때만 `content` 접두어가 필요하다.
+  - DTO/API 정책: 해당 값은 관리자에서만 사용하므로 관리자 요청/응답 DTO와 API 필드명도 예외 없이 `settlementRatio`로 통일한다.
+  - nullable 정책: 기존 데이터와 크리에이터 정산 요율 미등록 케이스를 안전하게 수용하기 위해 초기 도입 시 `Int?`로 두고, 계산 시 `콘텐츠별 요율 -> 크리에이터 기본 요율 -> 70% 기본값` 순서로 fallback 하도록 설계한다.
+
+- [x] `AudioContent` 엔티티에 콘텐츠별 정산 요율 필드를 추가한다.
+  - 대상 파일: `src/main/kotlin/kr/co/vividnext/sodalive/content/AudioContent.kt`
+  - 작업 내용: `price` 인접 위치에 `settlementRatio: Int?` 필드를 추가하고, 기존 생성자 호출부가 모두 컴파일되도록 생성 경로를 함께 정리한다.
+
+- [x] 관리자 콘텐츠 목록 조회 응답에 콘텐츠별 정산 요율을 노출한다.
+  - 대상 파일: `src/main/kotlin/kr/co/vividnext/sodalive/admin/content/AdminContentRepository.kt`, `src/main/kotlin/kr/co/vividnext/sodalive/admin/content/GetAdminContentListResponse.kt`, `src/main/kotlin/kr/co/vividnext/sodalive/admin/content/AdminContentService.kt`
+  - 작업 내용:
+    - `QGetAdminContentListItem(...)` QueryProjection에 `audioContent.settlementRatio`를 추가한다.
+    - `GetAdminContentListItem`에 `settlementRatio: Int?`를 추가하고, 관리자 목록 응답 필드명도 동일하게 `settlementRatio`로 맞춘다.
+    - `AdminContentController.getAudioContentList` 응답에 정산 요율이 함께 내려가도록 조회 체인을 맞춘다.
+
+- [x] 관리자 콘텐츠 수정 API에서 콘텐츠별 정산 요율을 수정할 수 있게 한다.
+  - 대상 파일: `src/main/kotlin/kr/co/vividnext/sodalive/admin/content/UpdateAdminContentRequest.kt`, `src/main/kotlin/kr/co/vividnext/sodalive/admin/content/AdminContentService.kt`
+  - 작업 내용:
+    - `UpdateAdminContentRequest`에 `settlementRatio: Int?`를 추가하고, 관리자 수정 요청 필드명도 동일하게 `settlementRatio`로 맞춘다.
+    - `AdminContentService.updateAudioContent`에서 요청값이 들어오면 `audioContent.settlementRatio`를 갱신한다.
+    - 숫자 범위 정책은 `0~100`으로 검증한다.
+    - 개별 콘텐츠 정산 요율 삭제는 `isSettlementRatioDeleted: true` 플래그로만 처리하고, `settlementRatio`와 동시 전달 시 invalid request 로 처리한다.
+
+- [x] 실제 콘텐츠 정산 계산이 크리에이터 기본 요율이 아니라 콘텐츠별 요율을 우선 사용하도록 변경한다.
+  - 대상 파일: `src/main/kotlin/kr/co/vividnext/sodalive/admin/calculate/AdminCalculateQueryRepository.kt`, `src/main/kotlin/kr/co/vividnext/sodalive/creator/admin/calculate/CreatorAdminCalculateQueryRepository.kt`, `src/main/kotlin/kr/co/vividnext/sodalive/admin/calculate/GetCalculateContentQueryData.kt`
+  - 작업 내용:
+    - 콘텐츠 판매/누적 판매 집계 쿼리에서 `creatorSettlementRatio.contentSettlementRatio` 직접 사용 부분을 점검한다.
+    - 정산 대상 비율은 `audioContent.settlementRatio`를 우선 사용하고, 값이 없을 때만 `creatorSettlementRatio.contentSettlementRatio`를 fallback 하도록 쿼리 또는 계산 DTO를 조정한다.
+    - 현재 `GetCalculateContentQueryData`의 70% 기본값 정책은 마지막 fallback 으로 유지한다.
+
+- [x] 크리에이터 관리자 정산 조회도 동일 기준을 사용하도록 맞춘다.
+  - 대상 파일: `src/main/kotlin/kr/co/vividnext/sodalive/creator/admin/calculate/CreatorAdminCalculateQueryRepository.kt`
+  - 작업 내용: 관리자 정산 조회와 동일하게 콘텐츠별 정산 요율 우선 정책을 반영해 관리자/크리에이터 화면 간 계산 기준이 달라지지 않게 한다.
+
+- [x] 기존 데이터 처리 정책을 정리한다.
+  - 대상 범위: 운영 DB 스키마/기존 콘텐츠 데이터
+  - 작업 내용:
+    - 신규 컬럼 추가 시 nullable 로 도입하고, DDL은 `docs/20260407_audio_content_settlement_ratio_ddl.sql` 기준으로 관리한다.
+    - 콘텐츠 등록 시 크리에이터 기본 정산 요율을 복사하지 않고, `NULL` 상태에서도 계산이 가능하도록 fallback 순서를 유지한다.
+    - 운영 정책상 기존 콘텐츠에도 즉시 고정값이 필요하면 별도 SQL 또는 배치 백필 계획을 추가로 작성한다.
+
+- [x] 영향 DTO/Q 클래스/컴파일 산출물을 재생성하고 검증한다.
+  - 작업 내용:
+    - QueryDSL projection 변경 후 Q 클래스 재생성이 필요한지 확인하고 빌드로 반영한다.
+    - 엔티티/관리자 DTO/API/QueryProjection 필드명이 모두 `settlementRatio`로 일치하는지 확인해 매핑 누락 가능성을 제거한다.
+
+- [x] 검증을 단계별로 수행한다.
+  - 작업 내용:
+    - `AdminContentController.getAudioContentList`에서 정산 요율 조회 포함 여부를 확인한다.
+    - `AdminContentController.modifyAudioContent`에서 정산 요율 수정 반영 여부를 확인한다.
+    - `AdminContentController.modifyAudioContent`에서 `isSettlementRatioDeleted = true` 요청 시 개별 콘텐츠 정산 요율이 삭제되는지 확인한다.
+    - 콘텐츠 등록 시 `settlementRatio`가 nullable 상태로 유지되어도 계산 fallback 이 정상 동작하는지 확인한다.
+    - 콘텐츠 정산 조회(`AdminCalculateQueryRepository`, `CreatorAdminCalculateQueryRepository`)가 콘텐츠별 요율을 우선 적용하는지 확인한다.
+    - 실행 검증은 최소 `./gradlew build`, 필요 시 `./gradlew test`까지 수행한다.
+
+## 1차 구현 검증 기록
+
+- 무엇을: `AudioContent.settlementRatio` nullable 컬럼 추가, 관리자 목록/수정 API 반영, 콘텐츠/누적 정산 쿼리의 콘텐츠별 요율 우선 fallback 반영, 생성 시 기본 요율 복사 제거.
+- 왜: 기존 콘텐츠와 미설정 콘텐츠를 `NULL`로 유지하면서도 관리자에서 개별 요율을 조회/수정하고 정산 시 올바른 fallback 순서를 적용하기 위해.
+- 어떻게:
+  - `./gradlew build` → 성공
+  - `./gradlew test` → `build` 과정에 포함되어 성공
+  - 관리자/정산 API의 실서버 수동 호출 검증 → 이 로컬 작업 세션에서는 애플리케이션 실행 및 인증 가능한 테스트 데이터가 없어 미실행
+
+## 2차 수정 검증 기록
+
+- 무엇을: `@SpringBootTest` 없이 콘텐츠 정산 계산 DTO의 명시 비율 적용과 `null -> 70% fallback`을 검증하는 순수 단위 테스트를 추가했다.
+- 왜: 정산 쿼리 변경만으로는 계산 결과가 코드상에서 충분히 고정되지 않아, 문서에 적힌 계산 규칙을 재현 가능한 테스트로 보장하기 위해.
+- 어떻게:
+  - `./gradlew test --tests kr.co.vividnext.sodalive.admin.calculate.ContentSettlementCalculationTest` → 성공
+  - 검증 대상: `GetCalculateContentQueryData`, `GetCumulativeSalesByContentQueryData`
+  - 검증 시나리오: `settlementRatio = 80` 적용, `settlementRatio = null` 시 70% fallback 적용
+
+## 3차 수정 검증 기록
+
+- 무엇을: 관리자 콘텐츠 수정 API의 개별 콘텐츠 정산 요율 삭제 방식을 명시적 null 대신 `isSettlementRatioDeleted` 플래그로 전환한다.
+- 왜: 부분 업데이트 요청에서 필드 생략과 null 삭제 의미가 섞이지 않도록 API 계약을 명확히 하기 위해.
+- 어떻게:
+  - `./gradlew test --tests kr.co.vividnext.sodalive.admin.content.AdminContentServiceTest` → 성공
+  - `./gradlew test --tests kr.co.vividnext.sodalive.admin.calculate.ContentSettlementCalculationTest` → 성공
+  - `./gradlew build` → 성공
+  - 검증 시나리오: 유효한 요율 설정, 삭제 플래그 삭제, 값/삭제 플래그 동시 전달 충돌, `null` 키/삭제 플래그 동시 전달 충돌, 범위 초과 거부, 정산 fallback 회귀 확인
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/admin/calculate/AdminCalculateQueryRepository.kt b/src/main/kotlin/kr/co/vividnext/sodalive/admin/calculate/AdminCalculateQueryRepository.kt
index 4d8e7de3..3f203e70 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/calculate/AdminCalculateQueryRepository.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/calculate/AdminCalculateQueryRepository.kt
@@ -86,6 +86,7 @@ class AdminCalculateQueryRepository(private val queryFactory: JPAQueryFactory) {
         val pointGroup = CaseBuilder()
             .`when`(order.point.loe(0)).then(0)
             .otherwise(1)
+        val contentSettlementRatio = audioContent.settlementRatio.coalesce(creatorSettlementRatio.contentSettlementRatio)
 
         return queryFactory
             .select(audioContent.id)
@@ -108,7 +109,7 @@ class AdminCalculateQueryRepository(private val queryFactory: JPAQueryFactory) {
                 orderFormattedDate,
                 order.can,
                 pointGroup,
-                creatorSettlementRatio.contentSettlementRatio
+                contentSettlementRatio
             )
             .fetch()
             .size
@@ -124,6 +125,7 @@ class AdminCalculateQueryRepository(private val queryFactory: JPAQueryFactory) {
         val pointGroup = CaseBuilder()
             .`when`(order.point.loe(0)).then(0)
             .otherwise(1)
+        val contentSettlementRatio = audioContent.settlementRatio.coalesce(creatorSettlementRatio.contentSettlementRatio)
 
         return queryFactory
             .select(
@@ -137,7 +139,7 @@ class AdminCalculateQueryRepository(private val queryFactory: JPAQueryFactory) {
                     order.id.count(),
                     order.can.sum(),
                     order.point.sum(),
-                    creatorSettlementRatio.contentSettlementRatio
+                    contentSettlementRatio
                 )
             )
             .from(order)
@@ -159,7 +161,7 @@ class AdminCalculateQueryRepository(private val queryFactory: JPAQueryFactory) {
                 orderFormattedDate,
                 order.can,
                 pointGroup,
-                creatorSettlementRatio.contentSettlementRatio
+                contentSettlementRatio
             )
             .orderBy(member.id.desc(), orderFormattedDate.desc(), audioContent.id.asc())
             .offset(offset)
@@ -182,13 +184,23 @@ class AdminCalculateQueryRepository(private val queryFactory: JPAQueryFactory) {
     }
 
     fun getCumulativeSalesByContentTotalCount(): Int {
+        val pointGroup = CaseBuilder()
+            .`when`(order.point.loe(0)).then(0)
+            .otherwise(1)
+        val contentSettlementRatio = audioContent.settlementRatio.coalesce(creatorSettlementRatio.contentSettlementRatio)
+
         return queryFactory
             .select(audioContent.id)
             .from(order)
             .innerJoin(order.audioContent, audioContent)
             .innerJoin(audioContent.member, member)
+            .leftJoin(creatorSettlementRatio)
+            .on(
+                member.id.eq(creatorSettlementRatio.member.id)
+                    .and(creatorSettlementRatio.deletedAt.isNull)
+            )
             .where(order.isActive.isTrue)
-            .groupBy(member.id, audioContent.id, order.can)
+            .groupBy(member.id, audioContent.id, order.type, order.can, pointGroup, contentSettlementRatio)
             .fetch()
             .size
     }
@@ -197,6 +209,7 @@ class AdminCalculateQueryRepository(private val queryFactory: JPAQueryFactory) {
         val pointGroup = CaseBuilder()
             .`when`(order.point.loe(0)).then(0)
             .otherwise(1)
+        val contentSettlementRatio = audioContent.settlementRatio.coalesce(creatorSettlementRatio.contentSettlementRatio)
 
         return queryFactory
             .select(
@@ -209,7 +222,7 @@ class AdminCalculateQueryRepository(private val queryFactory: JPAQueryFactory) {
                     order.id.count(),
                     order.can.sum(),
                     order.point.sum(),
-                    creatorSettlementRatio.contentSettlementRatio
+                    contentSettlementRatio
                 )
             )
             .from(order)
@@ -227,7 +240,7 @@ class AdminCalculateQueryRepository(private val queryFactory: JPAQueryFactory) {
                 order.type,
                 order.can,
                 pointGroup,
-                creatorSettlementRatio.contentSettlementRatio
+                contentSettlementRatio
             )
             .offset(offset)
             .limit(limit)
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/admin/chat/AdminChatBannerController.kt b/src/main/kotlin/kr/co/vividnext/sodalive/admin/chat/AdminChatBannerController.kt
index 086ab3ed..cc2e4b58 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/chat/AdminChatBannerController.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/chat/AdminChatBannerController.kt
@@ -62,7 +62,13 @@ class AdminChatBannerController(
         val banners = bannerService.getActiveBanners(pageable)
         val response = ChatCharacterBannerListPageResponse(
             totalCount = banners.totalElements,
-            content = banners.content.map { ChatCharacterBannerResponse.from(it, imageHost) }
+            content = banners.content.map {
+                ChatCharacterBannerResponse.from(
+                    banner = it,
+                    imageHost = imageHost,
+                    appendLanguageToCharacterName = true
+                )
+            }
         )
 
         ApiResponse.ok(response)
@@ -127,7 +133,8 @@ class AdminChatBannerController(
         // 1. 먼저 빈 이미지 경로로 배너 등록 (정렬 순서 포함)
         val banner = bannerService.registerBanner(
             characterId = request.characterId,
-            imagePath = ""
+            imagePath = "",
+            lang = request.lang
         )
 
         // 2. 배너 ID를 사용하여 이미지 업로드
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/admin/chat/dto/ChatCharacterBannerRequest.kt b/src/main/kotlin/kr/co/vividnext/sodalive/admin/chat/dto/ChatCharacterBannerRequest.kt
index 930c8e13..4d1877fd 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/chat/dto/ChatCharacterBannerRequest.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/chat/dto/ChatCharacterBannerRequest.kt
@@ -1,13 +1,15 @@
 package kr.co.vividnext.sodalive.admin.chat.dto
 
 import com.fasterxml.jackson.annotation.JsonProperty
+import kr.co.vividnext.sodalive.i18n.Lang
 
 /**
  * 캐릭터 배너 등록 요청 DTO
  */
 data class ChatCharacterBannerRegisterRequest(
     // 캐릭터 ID
-    @JsonProperty("characterId") val characterId: Long
+    @JsonProperty("characterId") val characterId: Long,
+    @JsonProperty("lang") val lang: Lang? = null
 )
 
 /**
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/admin/chat/dto/ChatCharacterBannerResponse.kt b/src/main/kotlin/kr/co/vividnext/sodalive/admin/chat/dto/ChatCharacterBannerResponse.kt
index 25ebcc7e..a114e9a9 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/chat/dto/ChatCharacterBannerResponse.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/chat/dto/ChatCharacterBannerResponse.kt
@@ -1,6 +1,7 @@
 package kr.co.vividnext.sodalive.admin.chat.dto
 
 import kr.co.vividnext.sodalive.chat.character.ChatCharacterBanner
+import kr.co.vividnext.sodalive.i18n.Lang
 
 /**
  * 캐릭터 배너 응답 DTO
@@ -12,14 +13,30 @@ data class ChatCharacterBannerResponse(
     val characterName: String
 ) {
     companion object {
-        fun from(banner: ChatCharacterBanner, imageHost: String): ChatCharacterBannerResponse {
+        fun from(
+            banner: ChatCharacterBanner,
+            imageHost: String,
+            appendLanguageToCharacterName: Boolean = false
+        ): ChatCharacterBannerResponse {
             return ChatCharacterBannerResponse(
                 id = banner.id!!,
                 imagePath = "$imageHost/${banner.imagePath}",
                 characterId = banner.chatCharacter.id!!,
-                characterName = banner.chatCharacter.name
+                characterName = if (appendLanguageToCharacterName) {
+                    "${banner.chatCharacter.name} (${getLanguageLabel(banner.lang)})"
+                } else {
+                    banner.chatCharacter.name
+                }
             )
         }
+
+        private fun getLanguageLabel(lang: Lang): String {
+            return when (lang) {
+                Lang.KO -> "한국어"
+                Lang.EN -> "영어"
+                Lang.JA -> "일본어"
+            }
+        }
     }
 }
 
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/AdminContentRepository.kt b/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/AdminContentRepository.kt
index af36cb06..283d1745 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/AdminContentRepository.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/AdminContentRepository.kt
@@ -110,6 +110,7 @@ class AdminAudioContentQueryRepositoryImpl(
                     audioContentTheme.theme,
                     audioContentTheme.id,
                     audioContent.price,
+                    audioContent.settlementRatio,
                     audioContent.limited,
                     audioContent.remaining,
                     audioContent.isAdult,
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/AdminContentService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/AdminContentService.kt
index dbdbd277..b903c420 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/AdminContentService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/AdminContentService.kt
@@ -93,7 +93,8 @@ class AdminContentService(
 
     @Transactional
     fun updateAudioContent(coverImage: MultipartFile?, requestString: String) {
-        val request = objectMapper.readValue(requestString, UpdateAdminContentRequest::class.java)
+        val requestNode = objectMapper.readTree(requestString)
+        val request = objectMapper.treeToValue(requestNode, UpdateAdminContentRequest::class.java)
         val audioContent = repository.findByIdOrNull(id = request.id)
             ?: throw SodaException(messageKey = "admin.content.not_found")
 
@@ -145,6 +146,18 @@ class AdminContentService(
             val theme = themeRepository.findByIdAndActive(id = request.themeId)
             audioContent.theme = theme
         }
+
+        if (request.isSettlementRatioDeleted == true) {
+            if (requestNode.has("settlementRatio")) {
+                throw SodaException(messageKey = "common.error.invalid_request")
+            }
+            audioContent.settlementRatio = null
+        } else if (request.settlementRatio != null) {
+            if (request.settlementRatio !in 0..100) {
+                throw SodaException(messageKey = "common.error.invalid_request")
+            }
+            audioContent.settlementRatio = request.settlementRatio
+        }
     }
 
     fun getContentMainTabList(): List<GetContentMainTabItem> {
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/GetAdminContentListResponse.kt b/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/GetAdminContentListResponse.kt
index 1fe1ba7e..8052b84d 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/GetAdminContentListResponse.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/GetAdminContentListResponse.kt
@@ -18,6 +18,7 @@ data class GetAdminContentListItem @QueryProjection constructor(
     val theme: String,
     val themeId: Long,
     val price: Int,
+    val settlementRatio: Int?,
     val totalContentCount: Int?,
     val remainingContentCount: Int?,
     val isAdult: Boolean,
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/UpdateAdminContentRequest.kt b/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/UpdateAdminContentRequest.kt
index 9b0a6e7c..1a51947c 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/UpdateAdminContentRequest.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/UpdateAdminContentRequest.kt
@@ -7,6 +7,8 @@ data class UpdateAdminContentRequest(
     val detail: String?,
     val curationId: Long?,
     val themeId: Long?,
+    val settlementRatio: Int?,
+    val isSettlementRatioDeleted: Boolean?,
     val isAdult: Boolean?,
     val isActive: Boolean?,
     val isCommentAvailable: Boolean?
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/banner/AdminContentBannerService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/banner/AdminContentBannerService.kt
index a6ecbf47..bcaeadcf 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/banner/AdminContentBannerService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/banner/AdminContentBannerService.kt
@@ -72,7 +72,7 @@ class AdminContentBannerService(
             null
         }
 
-        val audioContentBanner = AudioContentBanner(type = request.type)
+        val audioContentBanner = AudioContentBanner(type = request.type, lang = request.lang)
         audioContentBanner.link = request.link
         audioContentBanner.isAdult = request.isAdult
         audioContentBanner.event = event
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/banner/CreateContentBannerRequest.kt b/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/banner/CreateContentBannerRequest.kt
index e564206a..a5a81fbf 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/banner/CreateContentBannerRequest.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/banner/CreateContentBannerRequest.kt
@@ -1,9 +1,11 @@
 package kr.co.vividnext.sodalive.admin.content.banner
 
 import kr.co.vividnext.sodalive.content.main.banner.AudioContentBannerType
+import kr.co.vividnext.sodalive.i18n.Lang
 
 data class CreateContentBannerRequest(
     val type: AudioContentBannerType,
+    val lang: Lang,
     val tabId: Long?,
     val eventId: Long?,
     val creatorId: Long?,
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/series/banner/AdminContentSeriesBannerController.kt b/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/series/banner/AdminContentSeriesBannerController.kt
index 6f8c3d4b..7ec2edd5 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/series/banner/AdminContentSeriesBannerController.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/series/banner/AdminContentSeriesBannerController.kt
@@ -56,7 +56,9 @@ class AdminContentSeriesBannerController(
         val banners = bannerService.getActiveBanners(pageable)
         val response = SeriesBannerListPageResponse(
             totalCount = banners.totalElements,
-            content = banners.content.map { SeriesBannerResponse.from(it, imageHost) }
+            content = banners.content.map {
+                SeriesBannerResponse.from(it, imageHost, appendLanguageToSeriesTitle = true)
+            }
         )
         ApiResponse.ok(response)
     }
@@ -82,7 +84,7 @@ class AdminContentSeriesBannerController(
         val objectMapper = ObjectMapper()
         val request = objectMapper.readValue(requestString, SeriesBannerRegisterRequest::class.java)
 
-        val banner = bannerService.registerBanner(seriesId = request.seriesId, imagePath = "")
+        val banner = bannerService.registerBanner(seriesId = request.seriesId, imagePath = "", lang = request.lang)
         val imagePath = saveImage(banner.id!!, image)
         val updatedBanner = bannerService.updateBanner(banner.id!!, imagePath)
         val response = SeriesBannerResponse.from(updatedBanner, imageHost)
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/series/banner/dto/SeriesBannerDtos.kt b/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/series/banner/dto/SeriesBannerDtos.kt
index d054ca91..a8537476 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/series/banner/dto/SeriesBannerDtos.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/content/series/banner/dto/SeriesBannerDtos.kt
@@ -2,10 +2,12 @@ package kr.co.vividnext.sodalive.admin.content.series.banner.dto
 
 import com.fasterxml.jackson.annotation.JsonProperty
 import kr.co.vividnext.sodalive.content.series.main.banner.SeriesBanner
+import kr.co.vividnext.sodalive.i18n.Lang
 
 // 시리즈 배너 등록 요청 DTO
 data class SeriesBannerRegisterRequest(
-    @JsonProperty("seriesId") val seriesId: Long
+    @JsonProperty("seriesId") val seriesId: Long,
+    @JsonProperty("lang") val lang: Lang? = null
 )
 
 // 시리즈 배너 수정 요청 DTO
@@ -22,14 +24,30 @@ data class SeriesBannerResponse(
     val seriesTitle: String
 ) {
     companion object {
-        fun from(banner: SeriesBanner, imageHost: String): SeriesBannerResponse {
+        fun from(
+            banner: SeriesBanner,
+            imageHost: String,
+            appendLanguageToSeriesTitle: Boolean = false
+        ): SeriesBannerResponse {
             return SeriesBannerResponse(
                 id = banner.id!!,
                 imagePath = "$imageHost/${banner.imagePath}",
                 seriesId = banner.series.id!!,
-                seriesTitle = banner.series.title
+                seriesTitle = if (appendLanguageToSeriesTitle) {
+                    "${banner.series.title} (${getLanguageLabel(banner.lang)})"
+                } else {
+                    banner.series.title
+                }
             )
         }
+
+        private fun getLanguageLabel(lang: Lang): String {
+            return when (lang) {
+                Lang.KO -> "한국어"
+                Lang.EN -> "영어"
+                Lang.JA -> "일본어"
+            }
+        }
     }
 }
 
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/admin/live/AdminLiveController.kt b/src/main/kotlin/kr/co/vividnext/sodalive/admin/live/AdminLiveController.kt
index b4e659e9..98b581db 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/live/AdminLiveController.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/live/AdminLiveController.kt
@@ -39,9 +39,10 @@ class AdminLiveController(private val service: AdminLiveService) {
         @RequestParam("creator_id") creatorId: Long,
         @RequestParam("start_date") startDate: String,
         @RequestParam("end_date") endDate: String,
-        @RequestParam("is_adult") isAdult: Boolean
+        @RequestParam("is_adult") isAdult: Boolean,
+        @RequestParam("lang") lang: String
     ) = ApiResponse.ok(
-        service.createRecommendCreatorBanner(image, creatorId, startDate, endDate, isAdult),
+        service.createRecommendCreatorBanner(image, creatorId, startDate, endDate, isAdult, lang),
         "등록되었습니다."
     )
 
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/admin/live/AdminLiveService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/admin/live/AdminLiveService.kt
index b9cdeb15..39cdf2a0 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/live/AdminLiveService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/live/AdminLiveService.kt
@@ -17,6 +17,7 @@ import kr.co.vividnext.sodalive.fcm.FcmDeepLinkValue
 import kr.co.vividnext.sodalive.fcm.FcmEvent
 import kr.co.vividnext.sodalive.fcm.FcmEventType
 import kr.co.vividnext.sodalive.fcm.notification.PushNotificationCategory
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.i18n.SodaMessageSource
 import kr.co.vividnext.sodalive.live.recommend.RecommendLiveCreatorBanner
@@ -122,7 +123,8 @@ class AdminLiveService(
         creatorId: Long,
         startDateString: String,
         endDateString: String,
-        isAdult: Boolean
+        isAdult: Boolean,
+        lang: String
     ): Long {
         if (creatorId < 1) throw SodaException(messageKey = "admin.live.creator_required")
 
@@ -150,10 +152,17 @@ class AdminLiveService(
         if (endDate < nowDate) throw SodaException(messageKey = "admin.live.end_after_now")
         if (endDate <= startDate) throw SodaException(messageKey = "admin.live.start_before_end")
 
+        val bannerLang = try {
+            Lang.fromCode(lang)
+        } catch (_: IllegalArgumentException) {
+            throw SodaException(messageKey = "common.error.invalid_request")
+        }
+
         val recommendCreatorBanner = RecommendLiveCreatorBanner(
             startDate = startDate,
             endDate = endDate,
-            isAdult = isAdult
+            isAdult = isAdult,
+            lang = bannerLang
         )
         recommendCreatorBanner.creator = creator
         recommendCreatorBannerRepository.save(recommendCreatorBanner)
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/api/home/HomeService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/api/home/HomeService.kt
index cf7b925f..e93ed984 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/api/home/HomeService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/api/home/HomeService.kt
@@ -124,7 +124,8 @@ class HomeService(
         val bannerList = bannerService.getBannerList(
             tabId = 1,
             memberId = member?.id,
-            isAdult = isAdult
+            isAdult = isAdult,
+            lang = langContext.lang
         )
 
         val originalAudioDramaList = seriesService.getOriginalAudioDramaList(
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/api/live/LiveApiService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/api/live/LiveApiService.kt
index a2dcca68..7c1e64a7 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/api/live/LiveApiService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/api/live/LiveApiService.kt
@@ -3,6 +3,7 @@ package kr.co.vividnext.sodalive.api.live
 import kr.co.vividnext.sodalive.content.AudioContentService
 import kr.co.vividnext.sodalive.content.ContentType
 import kr.co.vividnext.sodalive.explorer.profile.creatorCommunity.CreatorCommunityService
+import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.live.recommend.LiveRecommendService
 import kr.co.vividnext.sodalive.live.room.LiveRoomService
 import kr.co.vividnext.sodalive.live.room.LiveRoomStatus
@@ -20,8 +21,8 @@ class LiveApiService(
     private val recommendService: LiveRecommendService,
     private val creatorCommunityService: CreatorCommunityService,
     private val memberContentPreferenceService: MemberContentPreferenceService,
-
-    private val blockMemberRepository: BlockMemberRepository
+    private val blockMemberRepository: BlockMemberRepository,
+    private val langContext: LangContext
 ) {
     fun fetchData(
         timezone: String,
@@ -49,7 +50,7 @@ class LiveApiService(
             listOf()
         }
 
-        val recommendLiveList = recommendService.getRecommendLive(member)
+        val recommendLiveList = recommendService.getRecommendLive(member, langContext.lang)
 
         val latestFinishedLiveList = liveService.getLatestFinishedLive(member)
 
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/can/coupon/CanCouponService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/can/coupon/CanCouponService.kt
index 54f17365..b457778d 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/can/coupon/CanCouponService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/can/coupon/CanCouponService.kt
@@ -8,6 +8,7 @@ import kr.co.vividnext.sodalive.common.SodaException
 import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.i18n.SodaMessageSource
 import kr.co.vividnext.sodalive.member.MemberRepository
+import kr.co.vividnext.sodalive.member.contentpreference.MemberContentPreferenceService
 import org.apache.poi.xssf.usermodel.XSSFWorkbook
 import org.springframework.context.ApplicationEventPublisher
 import org.springframework.data.repository.findByIdOrNull
@@ -29,6 +30,7 @@ class CanCouponService(
     private val couponNumberRepository: CanCouponNumberRepository,
 
     private val memberRepository: MemberRepository,
+    private val memberContentPreferenceService: MemberContentPreferenceService,
 
     private val objectMapper: ObjectMapper,
     private val applicationEventPublisher: ApplicationEventPublisher,
@@ -133,7 +135,8 @@ class CanCouponService(
         val member = memberRepository.findByIdOrNull(id = memberId)
             ?: throw SodaException(messageKey = "common.error.bad_credentials")
 
-        if (member.auth == null) throw SodaException(messageKey = "can.coupon.auth_required")
+        val viewerContentPreference = memberContentPreferenceService.getStoredPreference(member)
+        if (!viewerContentPreference.isAdult) throw SodaException(messageKey = "can.coupon.auth_required")
 
         issueService.validateAvailableUseCoupon(couponNumber, memberId)
 
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/ChatCharacterBanner.kt b/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/ChatCharacterBanner.kt
index 055f3a17..c2a85bb5 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/ChatCharacterBanner.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/ChatCharacterBanner.kt
@@ -1,7 +1,11 @@
 package kr.co.vividnext.sodalive.chat.character
 
 import kr.co.vividnext.sodalive.common.BaseEntity
+import kr.co.vividnext.sodalive.i18n.Lang
+import javax.persistence.Column
 import javax.persistence.Entity
+import javax.persistence.EnumType
+import javax.persistence.Enumerated
 import javax.persistence.FetchType
 import javax.persistence.JoinColumn
 import javax.persistence.ManyToOne
@@ -24,6 +28,10 @@ class ChatCharacterBanner(
     // 정렬 순서 (낮을수록 먼저 표시)
     var sortOrder: Int = 0,
 
+    @Column(nullable = false)
+    @Enumerated(EnumType.STRING)
+    var lang: Lang = Lang.KO,
+
     // 활성화 여부 (소프트 삭제용)
     var isActive: Boolean = true
 ) : BaseEntity()
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/controller/ChatCharacterController.kt b/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/controller/ChatCharacterController.kt
index f2d21ffe..cdaf7995 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/controller/ChatCharacterController.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/controller/ChatCharacterController.kt
@@ -62,7 +62,7 @@ class ChatCharacterController(
         val isAdultAccessible = resolveIsAdultAccessible(member)
 
         // 배너 조회 (최대 10개)
-        val banners = bannerService.getActiveBanners(PageRequest.of(0, 10))
+        val banners = bannerService.getDisplayBanners(PageRequest.of(0, 10), langContext.lang)
             .content
             .map {
                 CharacterBannerResponse(
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/repository/ChatCharacterBannerRepository.kt b/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/repository/ChatCharacterBannerRepository.kt
index 2de90207..4a911059 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/repository/ChatCharacterBannerRepository.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/repository/ChatCharacterBannerRepository.kt
@@ -1,6 +1,7 @@
 package kr.co.vividnext.sodalive.chat.character.repository
 
 import kr.co.vividnext.sodalive.chat.character.ChatCharacterBanner
+import kr.co.vividnext.sodalive.i18n.Lang
 import org.springframework.data.domain.Page
 import org.springframework.data.domain.Pageable
 import org.springframework.data.jpa.repository.JpaRepository
@@ -12,6 +13,8 @@ interface ChatCharacterBannerRepository : JpaRepository<ChatCharacterBanner, Lon
     // 활성화된 배너 목록 조회 (정렬 순서대로)
     fun findByIsActiveTrueOrderBySortOrderAsc(pageable: Pageable): Page<ChatCharacterBanner>
 
+    fun findByIsActiveTrueAndLangOrderBySortOrderAsc(lang: Lang, pageable: Pageable): Page<ChatCharacterBanner>
+
     // 활성화된 배너 중 최대 정렬 순서 값 조회
     @Query("SELECT MAX(b.sortOrder) FROM ChatCharacterBanner b WHERE b.isActive = true")
     fun findMaxSortOrder(): Int?
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/service/ChatCharacterBannerService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/service/ChatCharacterBannerService.kt
index 6321c28d..40858642 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/service/ChatCharacterBannerService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/chat/character/service/ChatCharacterBannerService.kt
@@ -4,6 +4,7 @@ import kr.co.vividnext.sodalive.chat.character.ChatCharacterBanner
 import kr.co.vividnext.sodalive.chat.character.repository.ChatCharacterBannerRepository
 import kr.co.vividnext.sodalive.chat.character.repository.ChatCharacterRepository
 import kr.co.vividnext.sodalive.common.SodaException
+import kr.co.vividnext.sodalive.i18n.Lang
 import org.springframework.data.domain.Page
 import org.springframework.data.domain.Pageable
 import org.springframework.stereotype.Service
@@ -21,6 +22,19 @@ class ChatCharacterBannerService(
         return bannerRepository.findByIsActiveTrueOrderBySortOrderAsc(pageable)
     }
 
+    fun getDisplayBanners(pageable: Pageable, lang: Lang): Page<ChatCharacterBanner> {
+        if (lang == Lang.KO) {
+            return bannerRepository.findByIsActiveTrueAndLangOrderBySortOrderAsc(Lang.KO, pageable)
+        }
+
+        val localizedBanners = bannerRepository.findByIsActiveTrueAndLangOrderBySortOrderAsc(lang, pageable)
+        return if (localizedBanners.hasContent()) {
+            localizedBanners
+        } else {
+            bannerRepository.findByIsActiveTrueAndLangOrderBySortOrderAsc(Lang.KO, pageable)
+        }
+    }
+
     /**
      * 배너 상세 조회
      */
@@ -37,7 +51,10 @@ class ChatCharacterBannerService(
      * @return 등록된 배너
      */
     @Transactional
-    fun registerBanner(characterId: Long, imagePath: String): ChatCharacterBanner {
+    fun registerBanner(characterId: Long, imagePath: String, lang: Lang? = null): ChatCharacterBanner {
+        val finalLang = lang ?: Lang.KO
+        validateRegisterLang(finalLang)
+
         val character = characterRepository.findById(characterId)
             .orElseThrow { SodaException(messageKey = "chat.character.not_found") }
 
@@ -51,12 +68,21 @@ class ChatCharacterBannerService(
         val banner = ChatCharacterBanner(
             imagePath = imagePath,
             chatCharacter = character,
-            sortOrder = finalSortOrder
+            sortOrder = finalSortOrder,
+            lang = finalLang
         )
 
         return bannerRepository.save(banner)
     }
 
+    private fun validateRegisterLang(lang: Lang) {
+        if (lang == Lang.KO || lang == Lang.EN || lang == Lang.JA) {
+            return
+        }
+
+        throw SodaException(messageKey = "common.error.invalid_request")
+    }
+
     /**
      * 배너 수정
      *
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/chat/original/controller/OriginalWorkController.kt b/src/main/kotlin/kr/co/vividnext/sodalive/chat/original/controller/OriginalWorkController.kt
index ce5232b2..73fab1f6 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/chat/original/controller/OriginalWorkController.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/chat/original/controller/OriginalWorkController.kt
@@ -14,6 +14,7 @@ import kr.co.vividnext.sodalive.common.ApiResponse
 import kr.co.vividnext.sodalive.common.SodaException
 import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.member.Member
+import kr.co.vividnext.sodalive.member.contentpreference.MemberContentPreferenceService
 import org.springframework.beans.factory.annotation.Value
 import org.springframework.security.core.annotation.AuthenticationPrincipal
 import org.springframework.web.bind.annotation.GetMapping
@@ -33,6 +34,7 @@ import java.time.LocalDateTime
 class OriginalWorkController(
     private val queryService: OriginalWorkQueryService,
     private val characterImageRepository: CharacterImageRepository,
+    private val memberContentPreferenceService: MemberContentPreferenceService,
 
     private val langContext: LangContext,
 
@@ -58,7 +60,7 @@ class OriginalWorkController(
         @RequestParam(defaultValue = "20") size: Int,
         @AuthenticationPrincipal(expression = "#this == 'anonymousUser' ? null : member") member: Member?
     ) = run {
-        val includeAdult = member?.auth != null
+        val includeAdult = resolveIsAdultAccessible(member)
         val pageRes = queryService.listForAppPage(includeAdult, page, size)
         val content = pageRes.content.map { OriginalWorkListItemResponse.from(it, imageHost) }
 
@@ -127,7 +129,7 @@ class OriginalWorkController(
         @AuthenticationPrincipal(expression = "#this == 'anonymousUser' ? null : member") member: Member?
     ) = run {
         if (member == null) throw SodaException(messageKey = "common.error.bad_credentials")
-        if (member.auth == null) throw SodaException(messageKey = "common.error.adult_verification_required")
+        if (!resolveIsAdultAccessible(member)) throw SodaException(messageKey = "common.error.adult_verification_required")
 
         val ow = queryService.getOriginalWork(id)
         val chars = queryService.getActiveCharactersPage(id, page = 0, size = 20).content
@@ -196,4 +198,12 @@ class OriginalWorkController(
             )
         )
     }
+
+    private fun resolveIsAdultAccessible(member: Member?): Boolean {
+        if (member == null) {
+            return false
+        }
+
+        return memberContentPreferenceService.getStoredPreference(member).isAdult
+    }
 }
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/chat/quota/ChatQuotaController.kt b/src/main/kotlin/kr/co/vividnext/sodalive/chat/quota/ChatQuotaController.kt
index 01bc064d..e981f46b 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/chat/quota/ChatQuotaController.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/chat/quota/ChatQuotaController.kt
@@ -5,6 +5,7 @@ import kr.co.vividnext.sodalive.can.use.CanUsage
 import kr.co.vividnext.sodalive.common.ApiResponse
 import kr.co.vividnext.sodalive.common.SodaException
 import kr.co.vividnext.sodalive.member.Member
+import kr.co.vividnext.sodalive.member.contentpreference.MemberContentPreferenceService
 import org.springframework.security.core.annotation.AuthenticationPrincipal
 import org.springframework.web.bind.annotation.GetMapping
 import org.springframework.web.bind.annotation.PostMapping
@@ -16,7 +17,8 @@ import org.springframework.web.bind.annotation.RestController
 @RequestMapping("/api/chat/quota")
 class ChatQuotaController(
     private val chatQuotaService: ChatQuotaService,
-    private val canPaymentService: CanPaymentService
+    private val canPaymentService: CanPaymentService,
+    private val memberContentPreferenceService: MemberContentPreferenceService
 ) {
 
     data class ChatQuotaStatusResponse(
@@ -33,7 +35,7 @@ class ChatQuotaController(
         @AuthenticationPrincipal(expression = "#this == 'anonymousUser' ? null : member") member: Member?
     ): ApiResponse<ChatQuotaStatusResponse> = run {
         if (member == null) throw SodaException(messageKey = "common.error.bad_credentials")
-        if (member.auth == null) throw SodaException(messageKey = "common.error.adult_verification_required")
+        if (!resolveIsAdultAccessible(member)) throw SodaException(messageKey = "common.error.adult_verification_required")
 
         val s = chatQuotaService.getStatus(member.id!!)
         ApiResponse.ok(ChatQuotaStatusResponse(s.totalRemaining, s.nextRechargeAtEpochMillis))
@@ -45,10 +47,9 @@ class ChatQuotaController(
         @RequestBody request: ChatQuotaPurchaseRequest
     ): ApiResponse<ChatQuotaStatusResponse> = run {
         if (member == null) throw SodaException(messageKey = "common.error.bad_credentials")
-        if (member.auth == null) throw SodaException(messageKey = "common.error.adult_verification_required")
+        if (!resolveIsAdultAccessible(member)) throw SodaException(messageKey = "common.error.adult_verification_required")
         if (request.container.isBlank()) throw SodaException(messageKey = "chat.quota.container_required")
 
-        // 30캔 차감 처리 (결제 기록 남김)
         canPaymentService.spendCan(
             memberId = member.id!!,
             needCan = 30,
@@ -56,8 +57,15 @@ class ChatQuotaController(
             container = request.container
         )
 
-        // 글로벌 유료 개념 제거됨: 구매 성공 시에도 글로벌 쿼터 증액 없음
         val s = chatQuotaService.getStatus(member.id!!)
         ApiResponse.ok(ChatQuotaStatusResponse(s.totalRemaining, s.nextRechargeAtEpochMillis))
     }
+
+    private fun resolveIsAdultAccessible(member: Member?): Boolean {
+        if (member == null) {
+            return false
+        }
+
+        return memberContentPreferenceService.getStoredPreference(member).isAdult
+    }
 }
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/chat/quota/room/ChatRoomQuotaController.kt b/src/main/kotlin/kr/co/vividnext/sodalive/chat/quota/room/ChatRoomQuotaController.kt
index c1d8f543..e886de05 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/chat/quota/room/ChatRoomQuotaController.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/chat/quota/room/ChatRoomQuotaController.kt
@@ -7,6 +7,7 @@ import kr.co.vividnext.sodalive.chat.room.repository.ChatRoomRepository
 import kr.co.vividnext.sodalive.common.ApiResponse
 import kr.co.vividnext.sodalive.common.SodaException
 import kr.co.vividnext.sodalive.member.Member
+import kr.co.vividnext.sodalive.member.contentpreference.MemberContentPreferenceService
 import org.springframework.security.core.annotation.AuthenticationPrincipal
 import org.springframework.web.bind.annotation.GetMapping
 import org.springframework.web.bind.annotation.PathVariable
@@ -21,7 +22,8 @@ class ChatRoomQuotaController(
     private val chatRoomRepository: ChatRoomRepository,
     private val participantRepository: ChatParticipantRepository,
     private val chatRoomQuotaService: ChatRoomQuotaService,
-    private val chatQuotaService: ChatQuotaService
+    private val chatQuotaService: ChatQuotaService,
+    private val memberContentPreferenceService: MemberContentPreferenceService
 ) {
 
     data class PurchaseRoomQuotaRequest(
@@ -53,17 +55,15 @@ class ChatRoomQuotaController(
         @RequestBody req: PurchaseRoomQuotaRequest
     ): ApiResponse<PurchaseRoomQuotaResponse> = run {
         if (member == null) throw SodaException(messageKey = "common.error.bad_credentials")
-        if (member.auth == null) throw SodaException(messageKey = "common.error.adult_verification_required")
+        if (!resolveIsAdultAccessible(member)) throw SodaException(messageKey = "common.error.adult_verification_required")
         if (req.container.isBlank()) throw SodaException(messageKey = "chat.room.quota.invalid_access")
 
         val room = chatRoomRepository.findByIdAndIsActiveTrue(chatRoomId)
             ?: throw SodaException(messageKey = "chat.error.room_not_found")
 
-        // 내 참여 여부 확인
         participantRepository.findByChatRoomAndMemberAndIsActiveTrue(room, member)
             ?: throw SodaException(messageKey = "chat.room.quota.invalid_access")
 
-        // 캐릭터 참여자 확인(유효한 AI 캐릭터 방인지 체크 및 characterId 기본값 보조)
         val characterParticipant = participantRepository
             .findByChatRoomAndParticipantTypeAndIsActiveTrue(room, ParticipantType.CHARACTER)
             ?: throw SodaException(messageKey = "chat.room.quota.not_ai_room")
@@ -74,7 +74,6 @@ class ChatRoomQuotaController(
         val characterId = character.id
             ?: throw SodaException(messageKey = "chat.room.quota.character_required")
 
-        // 서비스에서 결제 포함하여 처리
         val status = chatRoomQuotaService.purchase(
             memberId = member.id!!,
             chatRoomId = chatRoomId,
@@ -99,24 +98,20 @@ class ChatRoomQuotaController(
         @PathVariable chatRoomId: Long
     ): ApiResponse<RoomQuotaStatusResponse> = run {
         if (member == null) throw SodaException(messageKey = "common.error.bad_credentials")
-        if (member.auth == null) throw SodaException(messageKey = "common.error.adult_verification_required")
+        if (!resolveIsAdultAccessible(member)) throw SodaException(messageKey = "common.error.adult_verification_required")
 
         val room = chatRoomRepository.findByIdAndIsActiveTrue(chatRoomId)
             ?: throw SodaException(messageKey = "chat.error.room_not_found")
-        // 내 참여 여부 확인
         participantRepository.findByChatRoomAndMemberAndIsActiveTrue(room, member)
             ?: throw SodaException(messageKey = "chat.room.quota.invalid_access")
-        // 캐릭터 확인
         val characterParticipant = participantRepository
             .findByChatRoomAndParticipantTypeAndIsActiveTrue(room, ParticipantType.CHARACTER)
             ?: throw SodaException(messageKey = "chat.room.quota.not_ai_room")
         val character = characterParticipant.character
             ?: throw SodaException(messageKey = "chat.room.quota.not_ai_room")
 
-        // 글로벌 Lazy refill
         val globalStatus = chatQuotaService.getStatus(member.id!!)
 
-        // 룸 Lazy refill 상태
         val roomStatus = chatRoomQuotaService.applyRefillOnEnterAndGetStatus(
             memberId = member.id!!,
             chatRoomId = chatRoomId,
@@ -136,4 +131,12 @@ class ChatRoomQuotaController(
             )
         )
     }
+
+    private fun resolveIsAdultAccessible(member: Member?): Boolean {
+        if (member == null) {
+            return false
+        }
+
+        return memberContentPreferenceService.getStoredPreference(member).isAdult
+    }
 }
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/chat/room/controller/ChatRoomController.kt b/src/main/kotlin/kr/co/vividnext/sodalive/chat/room/controller/ChatRoomController.kt
index d2b80fbb..0220c39b 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/chat/room/controller/ChatRoomController.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/chat/room/controller/ChatRoomController.kt
@@ -8,6 +8,7 @@ import kr.co.vividnext.sodalive.chat.room.service.ChatRoomService
 import kr.co.vividnext.sodalive.common.ApiResponse
 import kr.co.vividnext.sodalive.common.SodaException
 import kr.co.vividnext.sodalive.member.Member
+import kr.co.vividnext.sodalive.member.contentpreference.MemberContentPreferenceService
 import org.springframework.security.core.annotation.AuthenticationPrincipal
 import org.springframework.web.bind.annotation.GetMapping
 import org.springframework.web.bind.annotation.PathVariable
@@ -20,7 +21,8 @@ import org.springframework.web.bind.annotation.RestController
 @RestController
 @RequestMapping("/api/chat/room")
 class ChatRoomController(
-    private val chatRoomService: ChatRoomService
+    private val chatRoomService: ChatRoomService,
+    private val memberContentPreferenceService: MemberContentPreferenceService
 ) {
 
     /**
@@ -43,7 +45,7 @@ class ChatRoomController(
         @RequestBody request: CreateChatRoomRequest
     ) = run {
         if (member == null) throw SodaException(messageKey = "common.error.bad_credentials")
-        if (member.auth == null) throw SodaException(messageKey = "common.error.adult_verification_required")
+        if (!resolveIsAdultAccessible(member)) throw SodaException(messageKey = "common.error.adult_verification_required")
 
         val response = chatRoomService.createOrGetChatRoom(member, request.characterId)
         ApiResponse.ok(response)
@@ -59,7 +61,7 @@ class ChatRoomController(
         @AuthenticationPrincipal(expression = "#this == 'anonymousUser' ? null : member") member: Member?,
         @RequestParam(defaultValue = "0") page: Int
     ) = run {
-        if (member == null || member.auth == null) {
+        if (member == null || !resolveIsAdultAccessible(member)) {
             ApiResponse.ok(emptyList())
         } else {
             val response = chatRoomService.listMyChatRooms(member, page)
@@ -78,7 +80,7 @@ class ChatRoomController(
         @PathVariable chatRoomId: Long
     ) = run {
         if (member == null) throw SodaException(messageKey = "common.error.bad_credentials")
-        if (member.auth == null) throw SodaException(messageKey = "common.error.adult_verification_required")
+        if (!resolveIsAdultAccessible(member)) throw SodaException(messageKey = "common.error.adult_verification_required")
 
         val isActive = chatRoomService.isMyRoomSessionActive(member, chatRoomId)
         ApiResponse.ok(isActive)
@@ -96,7 +98,7 @@ class ChatRoomController(
         @RequestParam(required = false) characterImageId: Long?
     ) = run {
         if (member == null) throw SodaException(messageKey = "common.error.bad_credentials")
-        if (member.auth == null) throw SodaException(messageKey = "common.error.adult_verification_required")
+        if (!resolveIsAdultAccessible(member)) throw SodaException(messageKey = "common.error.adult_verification_required")
 
         val response = chatRoomService.enterChatRoom(member, chatRoomId, characterImageId)
         ApiResponse.ok(response)
@@ -115,7 +117,7 @@ class ChatRoomController(
         @PathVariable chatRoomId: Long
     ) = run {
         if (member == null) throw SodaException(messageKey = "common.error.bad_credentials")
-        if (member.auth == null) throw SodaException(messageKey = "common.error.adult_verification_required")
+        if (!resolveIsAdultAccessible(member)) throw SodaException(messageKey = "common.error.adult_verification_required")
 
         chatRoomService.leaveChatRoom(member, chatRoomId)
         ApiResponse.ok(true)
@@ -135,7 +137,7 @@ class ChatRoomController(
         @RequestParam(required = false) cursor: Long?
     ) = run {
         if (member == null) throw SodaException(messageKey = "common.error.bad_credentials")
-        if (member.auth == null) throw SodaException(messageKey = "common.error.adult_verification_required")
+        if (!resolveIsAdultAccessible(member)) throw SodaException(messageKey = "common.error.adult_verification_required")
 
         val response = chatRoomService.getChatMessages(member, chatRoomId, cursor, limit)
         ApiResponse.ok(response)
@@ -154,7 +156,7 @@ class ChatRoomController(
         @RequestBody request: SendChatMessageRequest
     ) = run {
         if (member == null) throw SodaException(messageKey = "common.error.bad_credentials")
-        if (member.auth == null) throw SodaException(messageKey = "common.error.adult_verification_required")
+        if (!resolveIsAdultAccessible(member)) throw SodaException(messageKey = "common.error.adult_verification_required")
 
         if (request.message.isBlank()) {
             ApiResponse.error()
@@ -177,7 +179,7 @@ class ChatRoomController(
         @RequestBody request: ChatMessagePurchaseRequest
     ) = run {
         if (member == null) throw SodaException(messageKey = "common.error.bad_credentials")
-        if (member.auth == null) throw SodaException(messageKey = "common.error.adult_verification_required")
+        if (!resolveIsAdultAccessible(member)) throw SodaException(messageKey = "common.error.adult_verification_required")
 
         val result = chatRoomService.purchaseMessage(member, chatRoomId, messageId, request.container)
         ApiResponse.ok(result)
@@ -196,9 +198,17 @@ class ChatRoomController(
         @RequestBody request: ChatRoomResetRequest
     ) = run {
         if (member == null) throw SodaException(messageKey = "common.error.bad_credentials")
-        if (member.auth == null) throw SodaException(messageKey = "common.error.adult_verification_required")
+        if (!resolveIsAdultAccessible(member)) throw SodaException(messageKey = "common.error.adult_verification_required")
 
         val response = chatRoomService.resetChatRoom(member, chatRoomId, request.container)
         ApiResponse.ok(response)
     }
+
+    private fun resolveIsAdultAccessible(member: Member?): Boolean {
+        if (member == null) {
+            return false
+        }
+
+        return memberContentPreferenceService.getStoredPreference(member).isAdult
+    }
 }
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/content/AudioContent.kt b/src/main/kotlin/kr/co/vividnext/sodalive/content/AudioContent.kt
index a7cf23a1..eaa37f68 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/content/AudioContent.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/content/AudioContent.kt
@@ -35,6 +35,7 @@ data class AudioContent(
     var languageCode: String?,
     var playCount: Long = 0,
     var price: Int = 0,
+    var settlementRatio: Int? = null,
     var releaseDate: LocalDateTime? = null,
     val limited: Int? = null,
     var remaining: Int? = null,
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/content/main/banner/AudioContentBanner.kt b/src/main/kotlin/kr/co/vividnext/sodalive/content/main/banner/AudioContentBanner.kt
index c79f17ef..6c2dce3c 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/content/main/banner/AudioContentBanner.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/content/main/banner/AudioContentBanner.kt
@@ -4,6 +4,7 @@ import kr.co.vividnext.sodalive.common.BaseEntity
 import kr.co.vividnext.sodalive.content.main.tab.AudioContentMainTab
 import kr.co.vividnext.sodalive.creator.admin.content.series.Series
 import kr.co.vividnext.sodalive.event.Event
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import javax.persistence.Column
 import javax.persistence.Entity
@@ -22,6 +23,9 @@ data class AudioContentBanner(
     @Enumerated(value = EnumType.STRING)
     var type: AudioContentBannerType,
     @Column(nullable = false)
+    @Enumerated(value = EnumType.STRING)
+    var lang: Lang = Lang.KO,
+    @Column(nullable = false)
     var isAdult: Boolean = false,
     @Column(nullable = false)
     var isActive: Boolean = true,
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/content/main/banner/AudioContentBannerRepository.kt b/src/main/kotlin/kr/co/vividnext/sodalive/content/main/banner/AudioContentBannerRepository.kt
index 0fd76c68..3f125d97 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/content/main/banner/AudioContentBannerRepository.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/content/main/banner/AudioContentBannerRepository.kt
@@ -4,19 +4,20 @@ import com.querydsl.jpa.impl.JPAQueryFactory
 import kr.co.vividnext.sodalive.content.main.banner.QAudioContentBanner.audioContentBanner
 import kr.co.vividnext.sodalive.content.main.tab.QAudioContentMainTab.audioContentMainTab
 import kr.co.vividnext.sodalive.event.QEvent.event
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.QMember.member
 import org.springframework.data.jpa.repository.JpaRepository
 
 interface AudioContentBannerRepository : JpaRepository<AudioContentBanner, Long>, AudioContentBannerQueryRepository
 
 interface AudioContentBannerQueryRepository {
-    fun getAudioContentMainBannerList(tabId: Long, isAdult: Boolean): List<AudioContentBanner>
+    fun getAudioContentMainBannerList(tabId: Long, isAdult: Boolean, lang: Lang? = null): List<AudioContentBanner>
 }
 
 class AudioContentBannerQueryRepositoryImpl(
     private val queryFactory: JPAQueryFactory
 ) : AudioContentBannerQueryRepository {
-    override fun getAudioContentMainBannerList(tabId: Long, isAdult: Boolean): List<AudioContentBanner> {
+    override fun getAudioContentMainBannerList(tabId: Long, isAdult: Boolean, lang: Lang?): List<AudioContentBanner> {
         var where = audioContentBanner.isActive.isTrue
 
         where = if (tabId == 1L) {
@@ -29,6 +30,10 @@ class AudioContentBannerQueryRepositoryImpl(
             where = where.and(audioContentBanner.isAdult.isFalse)
         }
 
+        if (lang != null) {
+            where = where.and(audioContentBanner.lang.eq(lang))
+        }
+
         return queryFactory
             .selectFrom(audioContentBanner)
             .leftJoin(audioContentBanner.tab, audioContentMainTab)
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/content/main/banner/AudioContentBannerService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/content/main/banner/AudioContentBannerService.kt
index 4aaaffa7..c8904ca5 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/content/main/banner/AudioContentBannerService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/content/main/banner/AudioContentBannerService.kt
@@ -1,6 +1,7 @@
 package kr.co.vividnext.sodalive.content.main.banner
 
 import kr.co.vividnext.sodalive.event.EventItem
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.block.BlockMemberRepository
 import org.springframework.beans.factory.annotation.Value
 import org.springframework.stereotype.Service
@@ -13,8 +14,8 @@ class AudioContentBannerService(
     @Value("\${cloud.aws.cloud-front.host}")
     private val imageHost: String
 ) {
-    fun getBannerList(tabId: Long, memberId: Long?, isAdult: Boolean): List<GetAudioContentBannerResponse> {
-        return repository.getAudioContentMainBannerList(tabId, isAdult)
+    fun getBannerList(tabId: Long, memberId: Long?, isAdult: Boolean, lang: Lang? = null): List<GetAudioContentBannerResponse> {
+        return repository.getAudioContentMainBannerList(tabId, isAdult, lang)
             .filter {
                 if (it.type == AudioContentBannerType.CREATOR && it.creator != null && memberId != null) {
                     !isBlockedBetweenMembers(memberId = memberId, creatorId = it.creator!!.id!!)
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/content/series/main/SeriesMainController.kt b/src/main/kotlin/kr/co/vividnext/sodalive/content/series/main/SeriesMainController.kt
index 41c6fde9..0d21dc79 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/content/series/main/SeriesMainController.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/content/series/main/SeriesMainController.kt
@@ -6,6 +6,7 @@ import kr.co.vividnext.sodalive.common.SodaException
 import kr.co.vividnext.sodalive.content.series.ContentSeriesService
 import kr.co.vividnext.sodalive.content.series.main.banner.ContentSeriesBannerService
 import kr.co.vividnext.sodalive.creator.admin.content.series.SeriesPublishedDaysOfWeek
+import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.contentpreference.MemberContentPreferenceService
 import org.springframework.beans.factory.annotation.Value
@@ -21,6 +22,7 @@ import org.springframework.web.bind.annotation.RestController
 class SeriesMainController(
     private val contentSeriesService: ContentSeriesService,
     private val bannerService: ContentSeriesBannerService,
+    private val langContext: LangContext,
     private val memberContentPreferenceService: MemberContentPreferenceService,
 
     @Value("\${cloud.aws.cloud-front.host}")
@@ -33,7 +35,7 @@ class SeriesMainController(
         if (member == null) throw SodaException(messageKey = "common.error.bad_credentials")
         val preference = resolvePreference(member)
 
-        val banners = bannerService.getActiveBanners(PageRequest.of(0, 10))
+        val banners = bannerService.getDisplayBanners(PageRequest.of(0, 10), langContext.lang)
             .content
             .map {
                 SeriesBannerResponse.from(it, imageHost)
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/content/series/main/banner/ContentSeriesBannerService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/content/series/main/banner/ContentSeriesBannerService.kt
index 8ea977b8..fbce2efa 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/content/series/main/banner/ContentSeriesBannerService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/content/series/main/banner/ContentSeriesBannerService.kt
@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.content.series.main.banner
 
 import kr.co.vividnext.sodalive.admin.content.series.AdminContentSeriesRepository
 import kr.co.vividnext.sodalive.common.SodaException
+import kr.co.vividnext.sodalive.i18n.Lang
 import org.springframework.data.domain.Page
 import org.springframework.data.domain.Pageable
 import org.springframework.stereotype.Service
@@ -16,22 +17,28 @@ class ContentSeriesBannerService(
         return bannerRepository.findByIsActiveTrueOrderBySortOrderAsc(pageable)
     }
 
+    fun getDisplayBanners(pageable: Pageable, lang: Lang): Page<SeriesBanner> {
+        return bannerRepository.findByIsActiveTrueAndLangOrderBySortOrderAsc(lang, pageable)
+    }
+
     fun getBannerById(bannerId: Long): SeriesBanner {
         return bannerRepository.findById(bannerId)
             .orElseThrow { SodaException(messageKey = "series.banner.error.not_found") }
     }
 
     @Transactional
-    fun registerBanner(seriesId: Long, imagePath: String): SeriesBanner {
+    fun registerBanner(seriesId: Long, imagePath: String, lang: Lang? = null): SeriesBanner {
         val series = seriesRepository.findByIdAndActiveTrue(seriesId)
             ?: throw SodaException(messageKey = "series.banner.error.series_not_found")
 
         val finalSortOrder = (bannerRepository.findMaxSortOrder() ?: 0) + 1
+        val finalLang = lang ?: Lang.KO
 
         val banner = SeriesBanner(
             imagePath = imagePath,
             series = series,
-            sortOrder = finalSortOrder
+            sortOrder = finalSortOrder,
+            lang = finalLang
         )
         return bannerRepository.save(banner)
     }
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/content/series/main/banner/SeriesBanner.kt b/src/main/kotlin/kr/co/vividnext/sodalive/content/series/main/banner/SeriesBanner.kt
index 2b4cc810..d460cee3 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/content/series/main/banner/SeriesBanner.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/content/series/main/banner/SeriesBanner.kt
@@ -2,7 +2,11 @@ package kr.co.vividnext.sodalive.content.series.main.banner
 
 import kr.co.vividnext.sodalive.common.BaseEntity
 import kr.co.vividnext.sodalive.creator.admin.content.series.Series
+import kr.co.vividnext.sodalive.i18n.Lang
+import javax.persistence.Column
 import javax.persistence.Entity
+import javax.persistence.EnumType
+import javax.persistence.Enumerated
 import javax.persistence.FetchType
 import javax.persistence.JoinColumn
 import javax.persistence.ManyToOne
@@ -25,6 +29,10 @@ class SeriesBanner(
     // 정렬 순서 (낮을수록 먼저 표시)
     var sortOrder: Int = 0,
 
+    @Column(nullable = false)
+    @Enumerated(EnumType.STRING)
+    var lang: Lang = Lang.KO,
+
     // 활성화 여부 (소프트 삭제용)
     var isActive: Boolean = true
 ) : BaseEntity()
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/content/series/main/banner/SeriesBannerRepository.kt b/src/main/kotlin/kr/co/vividnext/sodalive/content/series/main/banner/SeriesBannerRepository.kt
index c2c2052f..b730bab9 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/content/series/main/banner/SeriesBannerRepository.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/content/series/main/banner/SeriesBannerRepository.kt
@@ -1,5 +1,6 @@
 package kr.co.vividnext.sodalive.content.series.main.banner
 
+import kr.co.vividnext.sodalive.i18n.Lang
 import org.springframework.data.domain.Page
 import org.springframework.data.domain.Pageable
 import org.springframework.data.jpa.repository.JpaRepository
@@ -10,6 +11,8 @@ import org.springframework.stereotype.Repository
 interface SeriesBannerRepository : JpaRepository<SeriesBanner, Long> {
     fun findByIsActiveTrueOrderBySortOrderAsc(pageable: Pageable): Page<SeriesBanner>
 
+    fun findByIsActiveTrueAndLangOrderBySortOrderAsc(lang: Lang, pageable: Pageable): Page<SeriesBanner>
+
     @Query("SELECT MAX(b.sortOrder) FROM SeriesBanner b WHERE b.isActive = true")
     fun findMaxSortOrder(): Int?
 }
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/creator/admin/calculate/CreatorAdminCalculateQueryRepository.kt b/src/main/kotlin/kr/co/vividnext/sodalive/creator/admin/calculate/CreatorAdminCalculateQueryRepository.kt
index eba2d596..0c782da1 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/creator/admin/calculate/CreatorAdminCalculateQueryRepository.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/creator/admin/calculate/CreatorAdminCalculateQueryRepository.kt
@@ -74,18 +74,28 @@ class CreatorAdminCalculateQueryRepository(private val queryFactory: JPAQueryFac
         memberId: Long
     ): Int {
         val orderFormattedDate = getFormattedDate(order.createdAt)
+        val pointGroup = CaseBuilder()
+            .`when`(order.point.loe(0)).then(0)
+            .otherwise(1)
+        val contentSettlementRatio = audioContent.settlementRatio.coalesce(creatorSettlementRatio.contentSettlementRatio)
+
         return queryFactory
             .select(audioContent.id)
             .from(order)
             .innerJoin(order.audioContent, audioContent)
             .innerJoin(audioContent.member, member)
+            .leftJoin(creatorSettlementRatio)
+            .on(
+                member.id.eq(creatorSettlementRatio.member.id)
+                    .and(creatorSettlementRatio.deletedAt.isNull)
+            )
             .where(
                 order.createdAt.goe(startDate)
                     .and(order.createdAt.loe(endDate))
                     .and(order.isActive.isTrue)
                     .and(order.creator.id.eq(memberId))
             )
-            .groupBy(audioContent.id, order.type, orderFormattedDate, order.can)
+            .groupBy(audioContent.id, order.type, orderFormattedDate, order.can, pointGroup, contentSettlementRatio)
             .orderBy(member.id.desc(), orderFormattedDate.desc(), audioContent.id.asc())
             .fetch()
             .size
@@ -102,6 +112,7 @@ class CreatorAdminCalculateQueryRepository(private val queryFactory: JPAQueryFac
         val pointGroup = CaseBuilder()
             .`when`(order.point.loe(0)).then(0)
             .otherwise(1)
+        val contentSettlementRatio = audioContent.settlementRatio.coalesce(creatorSettlementRatio.contentSettlementRatio)
 
         return queryFactory
             .select(
@@ -115,7 +126,7 @@ class CreatorAdminCalculateQueryRepository(private val queryFactory: JPAQueryFac
                     order.id.count(),
                     order.can.sum(),
                     order.point.sum(),
-                    creatorSettlementRatio.contentSettlementRatio
+                    contentSettlementRatio
                 )
             )
             .from(order)
@@ -138,7 +149,7 @@ class CreatorAdminCalculateQueryRepository(private val queryFactory: JPAQueryFac
                 orderFormattedDate,
                 order.can,
                 pointGroup,
-                creatorSettlementRatio.contentSettlementRatio
+                contentSettlementRatio
             )
             .offset(offset)
             .limit(limit)
@@ -161,16 +172,26 @@ class CreatorAdminCalculateQueryRepository(private val queryFactory: JPAQueryFac
     }
 
     fun getCumulativeSalesByContentTotalCount(memberId: Long): Int {
+        val pointGroup = CaseBuilder()
+            .`when`(order.point.loe(0)).then(0)
+            .otherwise(1)
+        val contentSettlementRatio = audioContent.settlementRatio.coalesce(creatorSettlementRatio.contentSettlementRatio)
+
         return queryFactory
             .select(audioContent.id)
             .from(order)
             .innerJoin(order.audioContent, audioContent)
             .innerJoin(audioContent.member, member)
+            .leftJoin(creatorSettlementRatio)
+            .on(
+                member.id.eq(creatorSettlementRatio.member.id)
+                    .and(creatorSettlementRatio.deletedAt.isNull)
+            )
             .where(
                 audioContent.member.id.eq(memberId)
                     .and(order.isActive.isTrue)
             )
-            .groupBy(member.id, audioContent.id, order.can)
+            .groupBy(member.id, audioContent.id, order.type, order.can, pointGroup, contentSettlementRatio)
             .fetch()
             .size
     }
@@ -183,6 +204,7 @@ class CreatorAdminCalculateQueryRepository(private val queryFactory: JPAQueryFac
         val pointGroup = CaseBuilder()
             .`when`(order.point.loe(0)).then(0)
             .otherwise(1)
+        val contentSettlementRatio = audioContent.settlementRatio.coalesce(creatorSettlementRatio.contentSettlementRatio)
 
         return queryFactory
             .select(
@@ -195,7 +217,7 @@ class CreatorAdminCalculateQueryRepository(private val queryFactory: JPAQueryFac
                     order.id.count(),
                     order.can.sum(),
                     order.point.sum(),
-                    creatorSettlementRatio.contentSettlementRatio
+                    contentSettlementRatio
                 )
             )
             .from(order)
@@ -216,7 +238,7 @@ class CreatorAdminCalculateQueryRepository(private val queryFactory: JPAQueryFac
                 order.type,
                 order.can,
                 pointGroup,
-                creatorSettlementRatio.contentSettlementRatio
+                contentSettlementRatio
             )
             .offset(offset)
             .limit(limit)
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/i18n/Lang.kt b/src/main/kotlin/kr/co/vividnext/sodalive/i18n/Lang.kt
index d40abe32..a1ceea97 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/i18n/Lang.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/i18n/Lang.kt
@@ -1,5 +1,6 @@
 package kr.co.vividnext.sodalive.i18n
 
+import com.fasterxml.jackson.annotation.JsonCreator
 import java.util.Locale
 
 enum class Lang(val code: String, val locale: Locale) {
@@ -8,6 +9,14 @@ enum class Lang(val code: String, val locale: Locale) {
     JA("ja", Locale.JAPANESE);
 
     companion object {
+        @JvmStatic
+        @JsonCreator(mode = JsonCreator.Mode.DELEGATING)
+        fun fromCode(value: String): Lang {
+            return values().find {
+                it.code.equals(value.trim(), ignoreCase = true) || it.name.equals(value.trim(), ignoreCase = true)
+            } ?: throw IllegalArgumentException("Unknown language code: $value")
+        }
+
         fun fromAcceptLanguage(header: String?): Lang {
             if (header.isNullOrBlank()) return KO
             val two = header.trim().lowercase().take(2) // 앱은 2자리만 보내지만 안전하게 처리
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendCacheService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendCacheService.kt
index 811302fd..0e5dd25a 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendCacheService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendCacheService.kt
@@ -1,5 +1,6 @@
 package kr.co.vividnext.sodalive.live.recommend
 
+import kr.co.vividnext.sodalive.i18n.Lang
 import org.springframework.cache.annotation.Cacheable
 import org.springframework.stereotype.Service
 
@@ -9,12 +10,13 @@ class LiveRecommendCacheService(
 ) {
     @Cacheable(
         cacheNames = ["cache_ttl_3_hours"],
-        key = "'getRecommendLive:' + (#memberId ?: 'guest') + ':' + #isAdult"
+        key = "'getRecommendLive:' + (#memberId ?: 'guest') + ':' + #isAdult + ':' + #lang.name()"
     )
-    fun getRecommendLive(memberId: Long?, isAdult: Boolean): List<GetRecommendLiveResponse> {
+    fun getRecommendLive(memberId: Long?, isAdult: Boolean, lang: Lang): List<GetRecommendLiveResponse> {
         return repository.getRecommendLive(
             memberId = memberId,
-            isAdult = isAdult
+            isAdult = isAdult,
+            lang = lang
         )
     }
 }
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendController.kt b/src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendController.kt
index d1b7280a..bd29b813 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendController.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendController.kt
@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.live.recommend
 
 import kr.co.vividnext.sodalive.common.ApiResponse
 import kr.co.vividnext.sodalive.common.SodaException
+import kr.co.vividnext.sodalive.i18n.LangContext
 import kr.co.vividnext.sodalive.member.Member
 import org.springframework.data.domain.Pageable
 import org.springframework.security.core.annotation.AuthenticationPrincipal
@@ -11,12 +12,15 @@ import org.springframework.web.bind.annotation.RestController
 
 @RestController
 @RequestMapping("/live/recommend")
-class LiveRecommendController(private val service: LiveRecommendService) {
+class LiveRecommendController(
+    private val service: LiveRecommendService,
+    private val langContext: LangContext
+) {
     @GetMapping
     fun getRecommendLive(
         @AuthenticationPrincipal(expression = "#this == 'anonymousUser' ? null : member") member: Member?
     ) = run {
-        ApiResponse.ok(service.getRecommendLive(member))
+        ApiResponse.ok(service.getRecommendLive(member, langContext.lang))
     }
 
     @GetMapping("/channel")
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendRepository.kt b/src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendRepository.kt
index 50901f77..cece4a56 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendRepository.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendRepository.kt
@@ -3,6 +3,7 @@ package kr.co.vividnext.sodalive.live.recommend
 import com.querydsl.core.types.Projections
 import com.querydsl.core.types.dsl.Expressions
 import com.querydsl.jpa.impl.JPAQueryFactory
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.live.recommend.QRecommendLiveCreatorBanner.recommendLiveCreatorBanner
 import kr.co.vividnext.sodalive.live.room.QLiveRoom.liveRoom
 import kr.co.vividnext.sodalive.member.MemberRole
@@ -22,12 +23,14 @@ class LiveRecommendRepository(
 ) {
     fun getRecommendLive(
         memberId: Long?,
-        isAdult: Boolean
+        isAdult: Boolean,
+        lang: Lang
     ): List<GetRecommendLiveResponse> {
         val dateNow = LocalDateTime.now()
 
         var where = recommendLiveCreatorBanner.startDate.loe(dateNow)
             .and(recommendLiveCreatorBanner.endDate.goe(dateNow))
+            .and(recommendLiveCreatorBanner.lang.eq(lang))
 
         if (!isAdult) {
             where = where.and(recommendLiveCreatorBanner.isAdult.isFalse)
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendService.kt b/src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendService.kt
index 108d1249..0a2a36fe 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendService.kt
@@ -1,5 +1,6 @@
 package kr.co.vividnext.sodalive.live.recommend
 
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.member.block.BlockMemberRepository
@@ -14,7 +15,7 @@ class LiveRecommendService(
     private val memberContentPreferenceService: MemberContentPreferenceService,
     private val liveRecommendCacheService: LiveRecommendCacheService
 ) {
-    fun getRecommendLive(member: Member?): List<GetRecommendLiveResponse> {
+    fun getRecommendLive(member: Member?, lang: Lang): List<GetRecommendLiveResponse> {
         val isAdult = if (member != null) {
             memberContentPreferenceService.getStoredPreference(member).isAdult
         } else {
@@ -23,7 +24,8 @@ class LiveRecommendService(
 
         return liveRecommendCacheService.getRecommendLive(
             memberId = member?.id,
-            isAdult = isAdult
+            isAdult = isAdult,
+            lang = lang
         )
     }
 
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/RecommendLiveCreatorBanner.kt b/src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/RecommendLiveCreatorBanner.kt
index b56d0309..64bf3f16 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/RecommendLiveCreatorBanner.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/live/recommend/RecommendLiveCreatorBanner.kt
@@ -1,10 +1,13 @@
 package kr.co.vividnext.sodalive.live.recommend
 
 import kr.co.vividnext.sodalive.common.BaseEntity
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import java.time.LocalDateTime
 import javax.persistence.Column
 import javax.persistence.Entity
+import javax.persistence.EnumType
+import javax.persistence.Enumerated
 import javax.persistence.FetchType
 import javax.persistence.JoinColumn
 import javax.persistence.ManyToOne
@@ -18,6 +21,9 @@ data class RecommendLiveCreatorBanner(
     @Column(nullable = false)
     var isAdult: Boolean = false,
     @Column(nullable = false)
+    @Enumerated(EnumType.STRING)
+    var lang: Lang = Lang.KO,
+    @Column(nullable = false)
     var orders: Int = 1,
     @Column(nullable = true)
     var image: String? = null
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/admin/calculate/ContentSettlementCalculationTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/admin/calculate/ContentSettlementCalculationTest.kt
new file mode 100644
index 00000000..75f095e7
--- /dev/null
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/admin/calculate/ContentSettlementCalculationTest.kt
@@ -0,0 +1,102 @@
+package kr.co.vividnext.sodalive.admin.calculate
+
+import kr.co.vividnext.sodalive.content.order.OrderType
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+
+class ContentSettlementCalculationTest {
+    @Test
+    @DisplayName("콘텐츠 정산 응답은 콘텐츠별 정산 요율을 우선 적용한다")
+    fun shouldApplyExplicitSettlementRatioForCalculateContentResponse() {
+        val result = GetCalculateContentQueryData(
+            nickname = "creator",
+            title = "content",
+            registrationDate = "2026-04-07",
+            saleDate = "2026-04-07",
+            orderType = OrderType.KEEP,
+            orderPrice = 100,
+            numberOfPeople = 2,
+            totalCan = 100,
+            totalPoint = 0,
+            settlementRatio = 80
+        ).toGetCalculateContentResponse()
+
+        assertEquals("소장", result.orderType)
+        assertEquals(10_000, result.totalKrw)
+        assertEquals(660, result.paymentFee)
+        assertEquals(7_472, result.settlementAmount)
+        assertEquals(247, result.tax)
+        assertEquals(7_225, result.depositAmount)
+    }
+
+    @Test
+    @DisplayName("콘텐츠 정산 응답은 정산 요율이 없으면 70퍼센트 기본값으로 계산한다")
+    fun shouldFallbackToDefaultSettlementRatioForCalculateContentResponse() {
+        val result = GetCalculateContentQueryData(
+            nickname = "creator",
+            title = "content",
+            registrationDate = "2026-04-07",
+            saleDate = "2026-04-07",
+            orderType = OrderType.RENTAL,
+            orderPrice = 70,
+            numberOfPeople = 1,
+            totalCan = 100,
+            totalPoint = 0,
+            settlementRatio = null
+        ).toGetCalculateContentResponse()
+
+        assertEquals("대여", result.orderType)
+        assertEquals(10_000, result.totalKrw)
+        assertEquals(660, result.paymentFee)
+        assertEquals(6_538, result.settlementAmount)
+        assertEquals(216, result.tax)
+        assertEquals(6_322, result.depositAmount)
+    }
+
+    @Test
+    @DisplayName("누적 콘텐츠 정산 응답은 콘텐츠별 정산 요율을 우선 적용한다")
+    fun shouldApplyExplicitSettlementRatioForCumulativeSalesResponse() {
+        val result = GetCumulativeSalesByContentQueryData(
+            nickname = "creator",
+            title = "content",
+            registrationDate = "2026-04-07",
+            orderType = OrderType.KEEP,
+            orderPrice = 100,
+            numberOfPeople = 2,
+            totalCan = 100,
+            totalPoint = 0,
+            settlementRatio = 80
+        ).toCumulativeSalesByContentItem()
+
+        assertEquals("소장", result.orderType)
+        assertEquals(10_000, result.totalKrw)
+        assertEquals(660, result.paymentFee)
+        assertEquals(7_472, result.settlementAmount)
+        assertEquals(247, result.tax)
+        assertEquals(7_225, result.depositAmount)
+    }
+
+    @Test
+    @DisplayName("누적 콘텐츠 정산 응답은 정산 요율이 없으면 70퍼센트 기본값으로 계산한다")
+    fun shouldFallbackToDefaultSettlementRatioForCumulativeSalesResponse() {
+        val result = GetCumulativeSalesByContentQueryData(
+            nickname = "creator",
+            title = "content",
+            registrationDate = "2026-04-07",
+            orderType = OrderType.RENTAL,
+            orderPrice = 70,
+            numberOfPeople = 1,
+            totalCan = 100,
+            totalPoint = 0,
+            settlementRatio = null
+        ).toCumulativeSalesByContentItem()
+
+        assertEquals("대여", result.orderType)
+        assertEquals(10_000, result.totalKrw)
+        assertEquals(660, result.paymentFee)
+        assertEquals(6_538, result.settlementAmount)
+        assertEquals(216, result.tax)
+        assertEquals(6_322, result.depositAmount)
+    }
+}
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/admin/chat/AdminChatBannerControllerTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/admin/chat/AdminChatBannerControllerTest.kt
new file mode 100644
index 00000000..19a37eea
--- /dev/null
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/admin/chat/AdminChatBannerControllerTest.kt
@@ -0,0 +1,145 @@
+package kr.co.vividnext.sodalive.admin.chat
+
+import com.amazonaws.services.s3.AmazonS3Client
+import com.fasterxml.jackson.databind.ObjectMapper
+import kr.co.vividnext.sodalive.admin.chat.character.service.AdminChatCharacterService
+import kr.co.vividnext.sodalive.aws.s3.S3Uploader
+import kr.co.vividnext.sodalive.chat.character.ChatCharacter
+import kr.co.vividnext.sodalive.chat.character.ChatCharacterBanner
+import kr.co.vividnext.sodalive.chat.character.service.ChatCharacterBannerService
+import kr.co.vividnext.sodalive.i18n.Lang
+import kr.co.vividnext.sodalive.i18n.LangContext
+import kr.co.vividnext.sodalive.i18n.SodaMessageSource
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertTrue
+import org.junit.jupiter.api.Test
+import org.mockito.Mockito
+import org.springframework.data.domain.PageImpl
+import org.springframework.data.domain.PageRequest
+import org.springframework.mock.web.MockMultipartFile
+import java.net.URL
+
+class AdminChatBannerControllerTest {
+    private val bannerService = Mockito.mock(ChatCharacterBannerService::class.java)
+    private val adminCharacterService = Mockito.mock(AdminChatCharacterService::class.java)
+    private val amazonS3Client = Mockito.mock(AmazonS3Client::class.java)
+    private val s3Uploader = S3Uploader(amazonS3Client)
+    private val controller = AdminChatBannerController(
+        bannerService = bannerService,
+        adminCharacterService = adminCharacterService,
+        s3Uploader = s3Uploader,
+        langContext = LangContext(),
+        messageSource = SodaMessageSource(),
+        s3Bucket = "test-bucket",
+        imageHost = "https://cdn.test"
+    )
+
+    @Test
+    fun shouldRegisterJapaneseBannerThroughAdminApi() {
+        val image = MockMultipartFile("image", "banner.png", "image/png", "image".toByteArray())
+        val registeredBanner = createBanner(id = 10L, lang = Lang.JA, imagePath = "")
+        val updatedBanner = createBanner(id = 10L, lang = Lang.JA, imagePath = "")
+
+        Mockito.`when`(amazonS3Client.getUrl(Mockito.eq("test-bucket"), Mockito.anyString()))
+            .thenAnswer { URL("https://cdn.test/${it.arguments[1]}") }
+
+        Mockito.`when`(
+            bannerService.registerBanner(
+                characterId = 1L,
+                imagePath = "",
+                lang = Lang.JA
+            )
+        ).thenReturn(registeredBanner)
+        Mockito.doAnswer {
+            updatedBanner.apply {
+                imagePath = it.arguments[1] as String
+            }
+        }.`when`(bannerService).updateBanner(Mockito.eq(10L), Mockito.anyString(), Mockito.isNull())
+
+        val response = controller.registerBanner(
+            image = image,
+            requestString = "{\"characterId\":1,\"lang\":\"ja\"}"
+        )
+
+        assertTrue(response.success)
+        assertEquals(10L, response.data?.id)
+        assertTrue(response.data?.imagePath?.startsWith("https://cdn.test/characters/banners/10/") == true)
+        Mockito.verify(bannerService).registerBanner(1L, "", Lang.JA)
+    }
+
+    @Test
+    fun shouldDeserializeIso639LanguageCodeToLangEnum() {
+        val request = ObjectMapper().readValue(
+            "{\"characterId\":1,\"lang\":\"en\"}",
+            kr.co.vividnext.sodalive.admin.chat.dto.ChatCharacterBannerRegisterRequest::class.java
+        )
+
+        assertEquals(Lang.EN, request.lang)
+    }
+
+    @Test
+    fun shouldRegisterKoreanBannerByDefaultWhenLangIsMissing() {
+        val image = MockMultipartFile("image", "banner.png", "image/png", "image".toByteArray())
+        val registeredBanner = createBanner(id = 11L, lang = Lang.KO, imagePath = "")
+        val updatedBanner = createBanner(id = 11L, lang = Lang.KO, imagePath = "")
+
+        Mockito.`when`(amazonS3Client.getUrl(Mockito.eq("test-bucket"), Mockito.anyString()))
+            .thenAnswer { URL("https://cdn.test/${it.arguments[1]}") }
+
+        Mockito.`when`(
+            bannerService.registerBanner(
+                characterId = 2L,
+                imagePath = "",
+                lang = null
+            )
+        ).thenReturn(registeredBanner)
+        Mockito.doAnswer {
+            updatedBanner.apply {
+                imagePath = it.arguments[1] as String
+            }
+        }.`when`(bannerService).updateBanner(Mockito.eq(11L), Mockito.anyString(), Mockito.isNull())
+
+        val response = controller.registerBanner(
+            image = image,
+            requestString = "{\"characterId\":2}"
+        )
+
+        assertTrue(response.success)
+        assertEquals(11L, response.data?.id)
+        Mockito.verify(bannerService).registerBanner(2L, "", null)
+    }
+
+    @Test
+    fun shouldAppendBannerLanguageToCharacterNameInBannerList() {
+        val pageable = PageRequest.of(0, 20)
+        val japaneseBanner = createBanner(id = 12L, lang = Lang.JA, imagePath = "banner/jp.png")
+
+        Mockito.`when`(adminCharacterService.createDefaultPageRequest(0, 20)).thenReturn(pageable)
+        Mockito.`when`(bannerService.getActiveBanners(pageable))
+            .thenReturn(PageImpl(listOf(japaneseBanner), pageable, 1))
+
+        val response = controller.getBannerList(page = 0, size = 20)
+
+        assertTrue(response.success)
+        assertEquals("character-12 (일본어)", response.data?.content?.first()?.characterName)
+    }
+
+    private fun createBanner(id: Long, lang: Lang, imagePath: String): ChatCharacterBanner {
+        val character = ChatCharacter(
+            characterUUID = "character-$id",
+            name = "character-$id",
+            description = "description-$id",
+            systemPrompt = "system-prompt-$id"
+        )
+        character.id = id
+
+        return ChatCharacterBanner(
+            imagePath = imagePath,
+            chatCharacter = character,
+            sortOrder = 1,
+            lang = lang
+        ).also {
+            it.id = id
+        }
+    }
+}
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/admin/content/AdminContentServiceTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/admin/content/AdminContentServiceTest.kt
new file mode 100644
index 00000000..027bd62b
--- /dev/null
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/admin/content/AdminContentServiceTest.kt
@@ -0,0 +1,166 @@
+package kr.co.vividnext.sodalive.admin.content
+
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import kr.co.vividnext.sodalive.admin.content.curation.AdminContentCurationRepository
+import kr.co.vividnext.sodalive.admin.content.tab.AdminContentMainTabRepository
+import kr.co.vividnext.sodalive.admin.content.theme.AdminContentThemeRepository
+import kr.co.vividnext.sodalive.aws.cloudfront.AudioContentCloudFront
+import kr.co.vividnext.sodalive.aws.s3.S3Uploader
+import kr.co.vividnext.sodalive.common.SodaException
+import kr.co.vividnext.sodalive.content.AudioContent
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertNull
+import org.junit.jupiter.api.Assertions.assertThrows
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.mockito.Mockito
+import java.util.Optional
+
+class AdminContentServiceTest {
+    private lateinit var repository: AdminContentRepository
+    private lateinit var themeRepository: AdminContentThemeRepository
+    private lateinit var audioContentCloudFront: AudioContentCloudFront
+    private lateinit var curationRepository: AdminContentCurationRepository
+    private lateinit var contentMainTabRepository: AdminContentMainTabRepository
+    private lateinit var s3Uploader: S3Uploader
+    private lateinit var service: AdminContentService
+
+    @BeforeEach
+    fun setup() {
+        repository = Mockito.mock(AdminContentRepository::class.java)
+        themeRepository = Mockito.mock(AdminContentThemeRepository::class.java)
+        audioContentCloudFront = Mockito.mock(AudioContentCloudFront::class.java)
+        curationRepository = Mockito.mock(AdminContentCurationRepository::class.java)
+        contentMainTabRepository = Mockito.mock(AdminContentMainTabRepository::class.java)
+        s3Uploader = Mockito.mock(S3Uploader::class.java)
+
+        service = AdminContentService(
+            repository = repository,
+            themeRepository = themeRepository,
+            audioContentCloudFront = audioContentCloudFront,
+            curationRepository = curationRepository,
+            contentMainTabRepository = contentMainTabRepository,
+            objectMapper = jacksonObjectMapper(),
+            s3Uploader = s3Uploader,
+            bucket = "test-bucket"
+        )
+    }
+
+    @Test
+    @DisplayName("관리자 콘텐츠 수정은 유효한 개별 정산 요율을 저장한다")
+    fun shouldUpdateSettlementRatioWhenValidValueIsProvided() {
+        val audioContent = createAudioContent(settlementRatio = 70)
+        Mockito.`when`(repository.findById(1L)).thenReturn(Optional.of(audioContent))
+
+        service.updateAudioContent(
+            coverImage = null,
+            requestString = """
+                {"id":1,"isDefaultCoverImage":false,"settlementRatio":80}
+            """.trimIndent()
+        )
+
+        assertEquals(80, audioContent.settlementRatio)
+    }
+
+    @Test
+    @DisplayName("관리자 콘텐츠 수정은 삭제 플래그로 개별 정산 요율을 삭제한다")
+    fun shouldDeleteSettlementRatioWhenDeleteFlagIsTrue() {
+        val audioContent = createAudioContent(settlementRatio = 70)
+        Mockito.`when`(repository.findById(1L)).thenReturn(Optional.of(audioContent))
+
+        service.updateAudioContent(
+            coverImage = null,
+            requestString = """
+                {"id":1,"isDefaultCoverImage":false,"isSettlementRatioDeleted":true}
+            """.trimIndent()
+        )
+
+        assertNull(audioContent.settlementRatio)
+    }
+
+    @Test
+    @DisplayName("관리자 콘텐츠 수정은 삭제 플래그와 정산 요율을 함께 보내면 예외를 던진다")
+    fun shouldThrowWhenDeleteFlagAndSettlementRatioAreProvidedTogether() {
+        val audioContent = createAudioContent(settlementRatio = 70)
+        Mockito.`when`(repository.findById(1L)).thenReturn(Optional.of(audioContent))
+
+        val exception = assertThrows(SodaException::class.java) {
+            service.updateAudioContent(
+                coverImage = null,
+                requestString = """
+                    {"id":1,"isDefaultCoverImage":false,"settlementRatio":80,"isSettlementRatioDeleted":true}
+                """.trimIndent()
+            )
+        }
+
+        assertEquals("common.error.invalid_request", exception.messageKey)
+        assertEquals(70, audioContent.settlementRatio)
+    }
+
+    @Test
+    @DisplayName("관리자 콘텐츠 수정은 삭제 플래그와 null 정산 요율 키를 함께 보내도 예외를 던진다")
+    fun shouldThrowWhenDeleteFlagAndNullSettlementRatioKeyAreProvidedTogether() {
+        val audioContent = createAudioContent(settlementRatio = 70)
+        Mockito.`when`(repository.findById(1L)).thenReturn(Optional.of(audioContent))
+
+        val exception = assertThrows(SodaException::class.java) {
+            service.updateAudioContent(
+                coverImage = null,
+                requestString = """
+                    {"id":1,"isDefaultCoverImage":false,"settlementRatio":null,"isSettlementRatioDeleted":true}
+                """.trimIndent()
+            )
+        }
+
+        assertEquals("common.error.invalid_request", exception.messageKey)
+        assertEquals(70, audioContent.settlementRatio)
+    }
+
+    @Test
+    @DisplayName("관리자 콘텐츠 수정은 범위를 벗어난 정산 요율이면 예외를 던진다")
+    fun shouldThrowWhenSettlementRatioIsOutOfRange() {
+        val audioContent = createAudioContent(settlementRatio = 70)
+        Mockito.`when`(repository.findById(1L)).thenReturn(Optional.of(audioContent))
+
+        val exception = assertThrows(SodaException::class.java) {
+            service.updateAudioContent(
+                coverImage = null,
+                requestString = """
+                    {"id":1,"isDefaultCoverImage":false,"settlementRatio":101}
+                """.trimIndent()
+            )
+        }
+
+        assertEquals("common.error.invalid_request", exception.messageKey)
+        assertEquals(70, audioContent.settlementRatio)
+    }
+
+    @Test
+    @DisplayName("관리자 콘텐츠 수정은 삭제 플래그와 정산 요율이 없으면 기존 값을 유지한다")
+    fun shouldKeepSettlementRatioWhenNoSettlementRatioFieldsAreProvided() {
+        val audioContent = createAudioContent(settlementRatio = 70)
+        Mockito.`when`(repository.findById(1L)).thenReturn(Optional.of(audioContent))
+
+        service.updateAudioContent(
+            coverImage = null,
+            requestString = """
+                {"id":1,"isDefaultCoverImage":false}
+            """.trimIndent()
+        )
+
+        assertEquals(70, audioContent.settlementRatio)
+    }
+
+    private fun createAudioContent(settlementRatio: Int?): AudioContent {
+        return AudioContent(
+            title = "title",
+            detail = "detail",
+            languageCode = "ko",
+            price = 100,
+            settlementRatio = settlementRatio
+        ).apply {
+            id = 1L
+        }
+    }
+}
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/admin/content/banner/AdminContentBannerServiceTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/admin/content/banner/AdminContentBannerServiceTest.kt
new file mode 100644
index 00000000..6ce901d5
--- /dev/null
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/admin/content/banner/AdminContentBannerServiceTest.kt
@@ -0,0 +1,78 @@
+package kr.co.vividnext.sodalive.admin.content.banner
+
+import com.amazonaws.services.s3.AmazonS3Client
+import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
+import kr.co.vividnext.sodalive.admin.content.series.AdminContentSeriesRepository
+import kr.co.vividnext.sodalive.admin.content.tab.AdminContentMainTabRepository
+import kr.co.vividnext.sodalive.aws.s3.S3Uploader
+import kr.co.vividnext.sodalive.content.main.banner.AudioContentBanner
+import kr.co.vividnext.sodalive.content.main.banner.AudioContentBannerType
+import kr.co.vividnext.sodalive.event.EventRepository
+import kr.co.vividnext.sodalive.i18n.Lang
+import kr.co.vividnext.sodalive.member.MemberRepository
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.mockito.ArgumentCaptor
+import org.mockito.Mockito
+import org.springframework.mock.web.MockMultipartFile
+import java.net.URL
+
+class AdminContentBannerServiceTest {
+    private lateinit var amazonS3Client: AmazonS3Client
+    private lateinit var s3Uploader: S3Uploader
+    private lateinit var repository: AdminContentBannerRepository
+    private lateinit var memberRepository: MemberRepository
+    private lateinit var seriesRepository: AdminContentSeriesRepository
+    private lateinit var eventRepository: EventRepository
+    private lateinit var contentMainTabRepository: AdminContentMainTabRepository
+    private lateinit var service: AdminContentBannerService
+
+    @BeforeEach
+    fun setUp() {
+        amazonS3Client = Mockito.mock(AmazonS3Client::class.java)
+        s3Uploader = S3Uploader(amazonS3Client)
+        repository = Mockito.mock(AdminContentBannerRepository::class.java)
+        memberRepository = Mockito.mock(MemberRepository::class.java)
+        seriesRepository = Mockito.mock(AdminContentSeriesRepository::class.java)
+        eventRepository = Mockito.mock(EventRepository::class.java)
+        contentMainTabRepository = Mockito.mock(AdminContentMainTabRepository::class.java)
+        service = AdminContentBannerService(
+            s3Uploader = s3Uploader,
+            repository = repository,
+            memberRepository = memberRepository,
+            seriesRepository = seriesRepository,
+            eventRepository = eventRepository,
+            contentMainTabRepository = contentMainTabRepository,
+            objectMapper = jacksonObjectMapper(),
+            bucket = "test-bucket"
+        )
+    }
+
+    @Test
+    @DisplayName("배너 등록 요청의 lang 값을 저장한다")
+    fun shouldSaveRequestedLangWhenCreatingBanner() {
+        val image = MockMultipartFile("image", "banner.png", "image/png", "image".toByteArray())
+        val requestString = """
+            {"type":"LINK","lang":"ja","tabId":null,"eventId":null,"creatorId":null,"seriesId":null,"link":"https://example.com","isAdult":false}
+        """.trimIndent()
+        val savedBannerCaptor = ArgumentCaptor.forClass(AudioContentBanner::class.java)
+
+        Mockito.`when`(repository.save(Mockito.any(AudioContentBanner::class.java)))
+            .thenAnswer {
+                (it.arguments[0] as AudioContentBanner).also { banner ->
+                    banner.id = 1L
+                }
+            }
+        Mockito.doAnswer { URL("https://cdn.test/${it.arguments[1]}") }
+            .`when`(amazonS3Client)
+            .getUrl(Mockito.eq("test-bucket"), Mockito.anyString())
+
+        service.createAudioContentMainBanner(image, requestString)
+
+        Mockito.verify(repository).save(savedBannerCaptor.capture())
+        assertEquals(AudioContentBannerType.LINK, savedBannerCaptor.value.type)
+        assertEquals(Lang.JA, savedBannerCaptor.value.lang)
+    }
+}
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/admin/content/series/banner/AdminContentSeriesBannerControllerTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/admin/content/series/banner/AdminContentSeriesBannerControllerTest.kt
new file mode 100644
index 00000000..dc46b303
--- /dev/null
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/admin/content/series/banner/AdminContentSeriesBannerControllerTest.kt
@@ -0,0 +1,108 @@
+package kr.co.vividnext.sodalive.admin.content.series.banner
+
+import com.amazonaws.services.s3.AmazonS3Client
+import com.fasterxml.jackson.databind.ObjectMapper
+import kr.co.vividnext.sodalive.aws.s3.S3Uploader
+import kr.co.vividnext.sodalive.content.series.main.banner.ContentSeriesBannerService
+import kr.co.vividnext.sodalive.content.series.main.banner.SeriesBanner
+import kr.co.vividnext.sodalive.creator.admin.content.series.Series
+import kr.co.vividnext.sodalive.i18n.Lang
+import kr.co.vividnext.sodalive.i18n.LangContext
+import kr.co.vividnext.sodalive.i18n.SodaMessageSource
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertTrue
+import org.junit.jupiter.api.Test
+import org.mockito.Mockito
+import org.springframework.data.domain.PageImpl
+import org.springframework.data.domain.PageRequest
+import org.springframework.mock.web.MockMultipartFile
+import java.net.URL
+
+class AdminContentSeriesBannerControllerTest {
+    private val bannerService = Mockito.mock(ContentSeriesBannerService::class.java)
+    private val amazonS3Client = Mockito.mock(AmazonS3Client::class.java)
+    private val s3Uploader = S3Uploader(amazonS3Client)
+    private val controller = AdminContentSeriesBannerController(
+        bannerService = bannerService,
+        s3Uploader = s3Uploader,
+        langContext = LangContext(),
+        messageSource = SodaMessageSource(),
+        s3Bucket = "test-bucket",
+        imageHost = "https://cdn.test"
+    )
+
+    @Test
+    fun shouldRegisterJapaneseBannerThroughAdminApi() {
+        val image = MockMultipartFile("image", "banner.png", "image/png", "image".toByteArray())
+        val registeredBanner = createBanner(id = 10L, lang = Lang.JA, imagePath = "")
+        val updatedBanner = createBanner(id = 10L, lang = Lang.JA, imagePath = "")
+
+        Mockito.`when`(amazonS3Client.getUrl(Mockito.eq("test-bucket"), Mockito.anyString()))
+            .thenAnswer { URL("https://cdn.test/${it.arguments[1]}") }
+
+        Mockito.`when`(
+            bannerService.registerBanner(
+                seriesId = 1L,
+                imagePath = "",
+                lang = Lang.JA
+            )
+        ).thenReturn(registeredBanner)
+        Mockito.doAnswer {
+            updatedBanner.apply {
+                imagePath = it.arguments[1] as String
+            }
+        }.`when`(bannerService).updateBanner(Mockito.eq(10L), Mockito.anyString(), Mockito.isNull())
+
+        val response = controller.registerBanner(
+            image = image,
+            requestString = "{\"seriesId\":1,\"lang\":\"ja\"}"
+        )
+
+        assertTrue(response.success)
+        assertEquals(10L, response.data?.id)
+        assertTrue(response.data?.imagePath?.startsWith("https://cdn.test/series_banner/10/") == true)
+        Mockito.verify(bannerService).registerBanner(1L, "", Lang.JA)
+    }
+
+    @Test
+    fun shouldDeserializeIso639LanguageCodeToLangEnum() {
+        val request = ObjectMapper().readValue(
+            "{\"seriesId\":1,\"lang\":\"en\"}",
+            kr.co.vividnext.sodalive.admin.content.series.banner.dto.SeriesBannerRegisterRequest::class.java
+        )
+
+        assertEquals(Lang.EN, request.lang)
+    }
+
+    @Test
+    fun shouldAppendBannerLanguageToSeriesTitleInBannerList() {
+        val pageable = PageRequest.of(0, 20)
+        val japaneseBanner = createBanner(id = 12L, lang = Lang.JA, imagePath = "banner/jp.png")
+
+        Mockito.`when`(bannerService.getActiveBanners(pageable))
+            .thenReturn(PageImpl(listOf(japaneseBanner), pageable, 1))
+
+        val response = controller.getBannerList(page = 0, size = 20)
+
+        assertTrue(response.success)
+        assertEquals("series-12 (일본어)", response.data?.content?.first()?.seriesTitle)
+    }
+
+    private fun createBanner(id: Long, lang: Lang, imagePath: String): SeriesBanner {
+        val series = Series(
+            title = "series-$id",
+            introduction = "introduction-$id",
+            languageCode = "ko"
+        )
+        series.id = id
+
+        return SeriesBanner(
+            imagePath = imagePath,
+            series = series,
+            sortOrder = 1,
+            lang = lang
+        ).also {
+            it.id = id
+        }
+    }
+}
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/admin/live/AdminLiveServiceTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/admin/live/AdminLiveServiceTest.kt
new file mode 100644
index 00000000..b8ed2976
--- /dev/null
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/admin/live/AdminLiveServiceTest.kt
@@ -0,0 +1,126 @@
+package kr.co.vividnext.sodalive.admin.live
+
+import com.amazonaws.services.s3.AmazonS3Client
+import kr.co.vividnext.sodalive.aws.s3.S3Uploader
+import kr.co.vividnext.sodalive.can.CanRepository
+import kr.co.vividnext.sodalive.can.charge.ChargeRepository
+import kr.co.vividnext.sodalive.can.use.UseCanCalculateRepository
+import kr.co.vividnext.sodalive.common.SodaException
+import kr.co.vividnext.sodalive.i18n.Lang
+import kr.co.vividnext.sodalive.i18n.LangContext
+import kr.co.vividnext.sodalive.i18n.SodaMessageSource
+import kr.co.vividnext.sodalive.live.recommend.RecommendLiveCreatorBanner
+import kr.co.vividnext.sodalive.live.recommend.RecommendLiveCreatorBannerRepository
+import kr.co.vividnext.sodalive.live.reservation.LiveReservationRepository
+import kr.co.vividnext.sodalive.live.room.cancel.LiveRoomCancelRepository
+import kr.co.vividnext.sodalive.live.room.info.LiveRoomInfoRedisRepository
+import kr.co.vividnext.sodalive.member.Member
+import kr.co.vividnext.sodalive.member.MemberRepository
+import kr.co.vividnext.sodalive.member.MemberRole
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertThrows
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.mockito.Mockito
+import org.springframework.context.ApplicationEventPublisher
+import org.springframework.mock.web.MockMultipartFile
+import java.net.URL
+
+class AdminLiveServiceTest {
+    private val recommendCreatorBannerRepository = Mockito.mock(RecommendLiveCreatorBannerRepository::class.java)
+    private val roomInfoRepository = Mockito.mock(LiveRoomInfoRedisRepository::class.java)
+    private val roomCancelRepository = Mockito.mock(LiveRoomCancelRepository::class.java)
+    private val repository = Mockito.mock(AdminLiveRoomQueryRepository::class.java)
+    private val memberRepository = Mockito.mock(MemberRepository::class.java)
+    private val amazonS3Client = Mockito.mock(AmazonS3Client::class.java)
+    private val s3Uploader = S3Uploader(amazonS3Client)
+    private val useCanCalculateRepository = Mockito.mock(UseCanCalculateRepository::class.java)
+    private val reservationRepository = Mockito.mock(LiveReservationRepository::class.java)
+    private val chargeRepository = Mockito.mock(ChargeRepository::class.java)
+    private val canRepository = Mockito.mock(CanRepository::class.java)
+    private val applicationEventPublisher = Mockito.mock(ApplicationEventPublisher::class.java)
+    private val messageSource = SodaMessageSource()
+    private val langContext = LangContext()
+    private val service = AdminLiveService(
+        recommendCreatorBannerRepository = recommendCreatorBannerRepository,
+        roomInfoRepository = roomInfoRepository,
+        roomCancelRepository = roomCancelRepository,
+        repository = repository,
+        memberRepository = memberRepository,
+        s3Uploader = s3Uploader,
+        useCanCalculateRepository = useCanCalculateRepository,
+        reservationRepository = reservationRepository,
+        chargeRepository = chargeRepository,
+        canRepository = canRepository,
+        applicationEventPublisher = applicationEventPublisher,
+        messageSource = messageSource,
+        langContext = langContext,
+        bucket = "test-bucket",
+        coverImageHost = "https://cdn.test"
+    )
+
+    @Test
+    @DisplayName("추천 크리에이터 등록은 소문자 lang 코드를 Lang enum으로 저장한다")
+    fun shouldSaveRecommendCreatorBannerWithIsoLanguageCode() {
+        val image = MockMultipartFile("image", "banner.png", "image/png", "image".toByteArray())
+        val creator = Member(
+            email = "creator@test.com",
+            password = "password",
+            nickname = "creator",
+            role = MemberRole.CREATOR
+        ).also {
+            it.id = 7L
+        }
+        var savedBanner: RecommendLiveCreatorBanner? = null
+
+        Mockito.`when`(memberRepository.findCreatorByIdOrNull(7L)).thenReturn(creator)
+        Mockito.doAnswer {
+            val banner = it.arguments[0] as RecommendLiveCreatorBanner
+            banner.id = 55L
+            savedBanner = banner
+            banner
+        }.`when`(recommendCreatorBannerRepository).save(Mockito.any(RecommendLiveCreatorBanner::class.java))
+        Mockito.`when`(amazonS3Client.getUrl(Mockito.eq("test-bucket"), Mockito.anyString()))
+            .thenAnswer { URL("https://cdn.test/${it.arguments[1]}") }
+
+        service.createRecommendCreatorBanner(
+            image = image,
+            creatorId = 7L,
+            startDateString = "2099-01-01 10:00",
+            endDateString = "2099-01-02 10:00",
+            isAdult = false,
+            lang = "ja"
+        )
+
+        assertEquals(Lang.JA, savedBanner?.lang)
+    }
+
+    @Test
+    @DisplayName("추천 크리에이터 등록은 지원하지 않는 lang 값이면 예외를 던진다")
+    fun shouldThrowWhenRecommendCreatorBannerLangIsInvalid() {
+        val image = MockMultipartFile("image", "banner.png", "image/png", "image".toByteArray())
+        val creator = Member(
+            email = "creator@test.com",
+            password = "password",
+            nickname = "creator",
+            role = MemberRole.CREATOR
+        ).also {
+            it.id = 7L
+        }
+
+        Mockito.`when`(memberRepository.findCreatorByIdOrNull(7L)).thenReturn(creator)
+
+        val exception = assertThrows(SodaException::class.java) {
+            service.createRecommendCreatorBanner(
+                image = image,
+                creatorId = 7L,
+                startDateString = "2099-01-01 10:00",
+                endDateString = "2099-01-02 10:00",
+                isAdult = false,
+                lang = "fr"
+            )
+        }
+
+        assertEquals("common.error.invalid_request", exception.messageKey)
+    }
+}
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/api/home/HomeServiceTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/api/home/HomeServiceTest.kt
new file mode 100644
index 00000000..245e857f
--- /dev/null
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/api/home/HomeServiceTest.kt
@@ -0,0 +1,314 @@
+package kr.co.vividnext.sodalive.api.home
+
+import kr.co.vividnext.sodalive.audition.AuditionService
+import kr.co.vividnext.sodalive.chat.character.service.ChatCharacterService
+import kr.co.vividnext.sodalive.content.AudioContentService
+import kr.co.vividnext.sodalive.content.ContentType
+import kr.co.vividnext.sodalive.content.SortType
+import kr.co.vividnext.sodalive.content.main.banner.AudioContentBannerService
+import kr.co.vividnext.sodalive.content.series.ContentSeriesService
+import kr.co.vividnext.sodalive.content.theme.AudioContentThemeService
+import kr.co.vividnext.sodalive.creator.admin.content.series.SeriesPublishedDaysOfWeek
+import kr.co.vividnext.sodalive.explorer.ExplorerQueryRepository
+import kr.co.vividnext.sodalive.i18n.Lang
+import kr.co.vividnext.sodalive.i18n.LangContext
+import kr.co.vividnext.sodalive.live.room.LiveRoomService
+import kr.co.vividnext.sodalive.live.room.LiveRoomStatus
+import kr.co.vividnext.sodalive.query.recommend.RecommendChannelQueryService
+import kr.co.vividnext.sodalive.rank.ContentRankingSortType
+import kr.co.vividnext.sodalive.rank.RankingRepository
+import kr.co.vividnext.sodalive.rank.RankingService
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.mockito.Mockito
+import org.springframework.data.domain.Pageable
+import java.time.DayOfWeek
+import java.time.LocalDateTime
+import java.time.ZoneId
+
+class HomeServiceTest {
+    private lateinit var liveRoomService: LiveRoomService
+    private lateinit var auditionService: AuditionService
+    private lateinit var seriesService: ContentSeriesService
+    private lateinit var contentService: AudioContentService
+    private lateinit var bannerService: AudioContentBannerService
+    private lateinit var contentThemeService: AudioContentThemeService
+    private lateinit var recommendChannelService: RecommendChannelQueryService
+    private lateinit var characterService: ChatCharacterService
+    private lateinit var rankingService: RankingService
+    private lateinit var rankingRepository: RankingRepository
+    private lateinit var explorerQueryRepository: ExplorerQueryRepository
+    private lateinit var service: HomeService
+    private val timezone = "Asia/Seoul"
+
+    @BeforeEach
+    fun setUp() {
+        liveRoomService = Mockito.mock(LiveRoomService::class.java)
+        auditionService = Mockito.mock(AuditionService::class.java)
+        seriesService = Mockito.mock(ContentSeriesService::class.java)
+        contentService = Mockito.mock(AudioContentService::class.java)
+        bannerService = Mockito.mock(AudioContentBannerService::class.java)
+        contentThemeService = Mockito.mock(AudioContentThemeService::class.java)
+        recommendChannelService = Mockito.mock(RecommendChannelQueryService::class.java)
+        characterService = Mockito.mock(ChatCharacterService::class.java)
+        rankingService = Mockito.mock(RankingService::class.java)
+        rankingRepository = Mockito.mock(RankingRepository::class.java)
+        explorerQueryRepository = Mockito.mock(ExplorerQueryRepository::class.java)
+        service = HomeService(
+            liveRoomService = liveRoomService,
+            auditionService = auditionService,
+            seriesService = seriesService,
+            contentService = contentService,
+            bannerService = bannerService,
+            contentThemeService = contentThemeService,
+            recommendChannelService = recommendChannelService,
+            characterService = characterService,
+            rankingService = rankingService,
+            rankingRepository = rankingRepository,
+            explorerQueryRepository = explorerQueryRepository,
+            langContext = LangContext().apply { setLang(Lang.JA) },
+            memberContentPreferenceService = Mockito.mock(
+                kr.co.vividnext.sodalive.member.contentpreference.MemberContentPreferenceService::class.java
+            ),
+            imageHost = "https://cdn.test"
+        )
+
+        val systemTime = LocalDateTime.now()
+        val zonedDateTime = systemTime
+            .atZone(ZoneId.systemDefault())
+            .withZoneSameInstant(ZoneId.of(timezone))
+        val expectedDayOfWeek = when (zonedDateTime.dayOfWeek) {
+            DayOfWeek.MONDAY -> SeriesPublishedDaysOfWeek.MON
+            DayOfWeek.TUESDAY -> SeriesPublishedDaysOfWeek.TUE
+            DayOfWeek.WEDNESDAY -> SeriesPublishedDaysOfWeek.WED
+            DayOfWeek.THURSDAY -> SeriesPublishedDaysOfWeek.THU
+            DayOfWeek.FRIDAY -> SeriesPublishedDaysOfWeek.FRI
+            DayOfWeek.SATURDAY -> SeriesPublishedDaysOfWeek.SAT
+            DayOfWeek.SUNDAY -> SeriesPublishedDaysOfWeek.SUN
+            null -> SeriesPublishedDaysOfWeek.RANDOM
+        }
+        val currentDateTime = LocalDateTime.now()
+        val rankingStartDate = currentDateTime
+            .withHour(15)
+            .withMinute(0)
+            .withSecond(0)
+            .minusWeeks(1)
+            .with(java.time.temporal.TemporalAdjusters.previousOrSame(DayOfWeek.MONDAY))
+        val rankingEndDate = rankingStartDate.plusDays(6)
+
+        Mockito.doReturn(emptyList<Any>()).`when`(liveRoomService)
+            .getRoomList(null, LiveRoomStatus.NOW, Pageable.ofSize(10), null, timezone)
+        Mockito.`when`(rankingRepository.getCreatorRankings(null)).thenReturn(emptyList())
+        Mockito.`when`(
+            contentThemeService.getActiveThemeOfContent(
+                false,
+                false,
+                false,
+                ContentType.ALL,
+                listOf("다시듣기")
+            )
+        ).thenReturn(emptyList())
+        Mockito.`when`(
+            contentThemeService.getActiveThemeOfContent(
+                false,
+                true,
+                false,
+                ContentType.ALL,
+                emptyList()
+            )
+        ).thenReturn(emptyList())
+        Mockito.`when`(
+            contentService.getLatestContentByTheme(
+                null,
+                emptyList(),
+                ContentType.ALL,
+                0,
+                20,
+                SortType.NEWEST,
+                false,
+                false,
+                false,
+                false,
+                emptyList()
+            )
+        )
+            .thenReturn(emptyList())
+        Mockito.`when`(
+            contentService.getLatestContentByTheme(
+                null,
+                emptyList(),
+                ContentType.ALL,
+                0,
+                50,
+                SortType.NEWEST,
+                true,
+                false,
+                false,
+                false,
+                emptyList()
+            )
+        )
+            .thenReturn(emptyList())
+        Mockito.`when`(
+            contentService.getLatestContentByTheme(
+                null,
+                emptyList(),
+                ContentType.ALL,
+                50,
+                100,
+                SortType.NEWEST,
+                true,
+                false,
+                false,
+                false,
+                emptyList()
+            )
+        )
+            .thenReturn(emptyList())
+        Mockito.`when`(
+            contentService.getLatestContentByTheme(
+                null,
+                emptyList(),
+                ContentType.ALL,
+                150,
+                150,
+                SortType.NEWEST,
+                true,
+                false,
+                false,
+                false,
+                emptyList()
+            )
+        )
+            .thenReturn(emptyList())
+        Mockito.`when`(
+            contentService.getLatestContentByTheme(
+                null,
+                emptyList(),
+                ContentType.ALL,
+                0,
+                50,
+                SortType.NEWEST,
+                false,
+                false,
+                false,
+                true,
+                emptyList()
+            )
+        )
+            .thenReturn(emptyList())
+        Mockito.`when`(
+            contentService.getLatestContentByTheme(
+                null,
+                emptyList(),
+                ContentType.ALL,
+                50,
+                100,
+                SortType.NEWEST,
+                false,
+                false,
+                false,
+                true,
+                emptyList()
+            )
+        )
+            .thenReturn(emptyList())
+        Mockito.`when`(
+            contentService.getLatestContentByTheme(
+                null,
+                emptyList(),
+                ContentType.ALL,
+                150,
+                150,
+                SortType.NEWEST,
+                false,
+                false,
+                false,
+                true,
+                emptyList()
+            )
+        )
+            .thenReturn(emptyList())
+        Mockito.`when`(
+            contentService.getLatestContentByTheme(
+                null,
+                emptyList(),
+                ContentType.ALL,
+                0,
+                50,
+                SortType.NEWEST,
+                false,
+                false,
+                false,
+                false,
+                emptyList()
+            )
+        )
+            .thenReturn(emptyList())
+        Mockito.`when`(
+            contentService.getLatestContentByTheme(
+                null,
+                emptyList(),
+                ContentType.ALL,
+                50,
+                100,
+                SortType.NEWEST,
+                false,
+                false,
+                false,
+                false,
+                emptyList()
+            )
+        )
+            .thenReturn(emptyList())
+        Mockito.`when`(
+            contentService.getLatestContentByTheme(
+                null,
+                emptyList(),
+                ContentType.ALL,
+                150,
+                150,
+                SortType.NEWEST,
+                false,
+                false,
+                false,
+                false,
+                emptyList()
+            )
+        )
+            .thenReturn(emptyList())
+        Mockito.`when`(bannerService.getBannerList(1L, null, false, Lang.JA)).thenReturn(emptyList())
+        Mockito.`when`(
+            seriesService.getOriginalAudioDramaList(null, false, ContentType.ALL, 0, 20)
+        ).thenReturn(emptyList())
+        Mockito.`when`(auditionService.getInProgressAuditionList(false)).thenReturn(emptyList())
+        Mockito.`when`(
+            seriesService.getDayOfWeekSeriesList(null, false, ContentType.ALL, expectedDayOfWeek, 0, 10)
+        ).thenReturn(emptyList())
+        Mockito.`when`(characterService.getPopularCharacters("ja", 20)).thenReturn(emptyList())
+        Mockito.`when`(
+            rankingService.getContentRanking(
+                null,
+                false,
+                ContentType.ALL,
+                rankingStartDate.minusDays(1),
+                rankingEndDate,
+                0,
+                12,
+                ContentRankingSortType.REVENUE,
+                ""
+            )
+        )
+            .thenReturn(emptyList())
+        Mockito.`when`(recommendChannelService.getRecommendChannel(null, false, ContentType.ALL)).thenReturn(emptyList())
+    }
+
+    @Test
+    @DisplayName("홈 fetchData는 현재 요청 언어를 배너 조회에 전달한다")
+    fun shouldPassCurrentLangToBannerServiceWhenFetchingHome() {
+        service.fetchData(timezone = timezone, member = null)
+
+        Mockito.verify(bannerService).getBannerList(1L, null, false, Lang.JA)
+    }
+}
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/can/coupon/CanCouponServiceTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/can/coupon/CanCouponServiceTest.kt
new file mode 100644
index 00000000..651ec3fb
--- /dev/null
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/can/coupon/CanCouponServiceTest.kt
@@ -0,0 +1,122 @@
+package kr.co.vividnext.sodalive.can.coupon
+
+import com.fasterxml.jackson.databind.ObjectMapper
+import kr.co.vividnext.sodalive.can.charge.ChargeService
+import kr.co.vividnext.sodalive.common.SodaException
+import kr.co.vividnext.sodalive.i18n.LangContext
+import kr.co.vividnext.sodalive.i18n.SodaMessageSource
+import kr.co.vividnext.sodalive.member.Member
+import kr.co.vividnext.sodalive.member.MemberRepository
+import kr.co.vividnext.sodalive.member.contentpreference.MemberContentPreferenceService
+import kr.co.vividnext.sodalive.member.contentpreference.ViewerContentPreference
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertThrows
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.mockito.Mockito.mock
+import org.mockito.Mockito.never
+import org.mockito.Mockito.verify
+import org.mockito.Mockito.`when`
+import org.springframework.context.ApplicationEventPublisher
+import java.util.Optional
+
+class CanCouponServiceTest {
+    private lateinit var issueService: CanCouponIssueService
+    private lateinit var chargeService: ChargeService
+    private lateinit var repository: CanCouponRepository
+    private lateinit var couponNumberRepository: CanCouponNumberRepository
+    private lateinit var memberRepository: MemberRepository
+    private lateinit var memberContentPreferenceService: MemberContentPreferenceService
+    private lateinit var objectMapper: ObjectMapper
+    private lateinit var applicationEventPublisher: ApplicationEventPublisher
+    private lateinit var messageSource: SodaMessageSource
+    private lateinit var langContext: LangContext
+
+    private lateinit var service: CanCouponService
+
+    @BeforeEach
+    fun setUp() {
+        issueService = mock(CanCouponIssueService::class.java)
+        chargeService = mock(ChargeService::class.java)
+        repository = mock(CanCouponRepository::class.java)
+        couponNumberRepository = mock(CanCouponNumberRepository::class.java)
+        memberRepository = mock(MemberRepository::class.java)
+        memberContentPreferenceService = mock(MemberContentPreferenceService::class.java)
+        objectMapper = mock(ObjectMapper::class.java)
+        applicationEventPublisher = mock(ApplicationEventPublisher::class.java)
+        messageSource = mock(SodaMessageSource::class.java)
+        langContext = LangContext()
+
+        service = CanCouponService(
+            issueService = issueService,
+            chargeService = chargeService,
+            repository = repository,
+            couponNumberRepository = couponNumberRepository,
+            memberRepository = memberRepository,
+            memberContentPreferenceService = memberContentPreferenceService,
+            objectMapper = objectMapper,
+            applicationEventPublisher = applicationEventPublisher,
+            messageSource = messageSource,
+            langContext = langContext
+        )
+    }
+
+    @Test
+    @DisplayName("비한국 사용자는 성인 노출 설정이 true이면 본인인증 없이 쿠폰을 사용할 수 있다")
+    fun shouldUseCouponWithoutAuthForNonKrAdultVisibleMember() {
+        val member = createMember(memberId = 1L)
+        val couponNumber = "COUPON1234"
+
+        `when`(memberRepository.findById(1L)).thenReturn(Optional.of(member))
+        `when`(memberContentPreferenceService.getStoredPreference(member)).thenReturn(
+            ViewerContentPreference(
+                countryCode = "US",
+                isAdultContentVisible = true,
+                contentType = kr.co.vividnext.sodalive.content.ContentType.ALL,
+                isAdult = true
+            )
+        )
+        `when`(chargeService.chargeByCoupon(couponNumber, member)).thenReturn("charged")
+
+        val result = service.useCanCoupon(couponNumber = couponNumber, memberId = 1L)
+
+        assertEquals("charged", result)
+        verify(issueService).validateAvailableUseCoupon(couponNumber, 1L)
+        verify(chargeService).chargeByCoupon(couponNumber, member)
+    }
+
+    @Test
+    @DisplayName("한국 사용자는 본인인증이 없으면 기존처럼 쿠폰 사용이 불가능하다")
+    fun shouldThrowWhenAdultPolicyIsFalse() {
+        val member = createMember(memberId = 2L)
+
+        `when`(memberRepository.findById(2L)).thenReturn(Optional.of(member))
+        `when`(memberContentPreferenceService.getStoredPreference(member)).thenReturn(
+            ViewerContentPreference(
+                countryCode = "KR",
+                isAdultContentVisible = true,
+                contentType = kr.co.vividnext.sodalive.content.ContentType.ALL,
+                isAdult = false
+            )
+        )
+
+        val exception = assertThrows(SodaException::class.java) {
+            service.useCanCoupon(couponNumber = "COUPON5678", memberId = 2L)
+        }
+
+        assertEquals("can.coupon.auth_required", exception.messageKey)
+        verify(issueService, never()).validateAvailableUseCoupon("COUPON5678", 2L)
+        verify(chargeService, never()).chargeByCoupon("COUPON5678", member)
+    }
+
+    private fun createMember(memberId: Long): Member {
+        return Member(
+            email = "member$memberId@test.com",
+            password = "password",
+            nickname = "member$memberId"
+        ).apply {
+            id = memberId
+        }
+    }
+}
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/chat/character/controller/ChatCharacterControllerTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/chat/character/controller/ChatCharacterControllerTest.kt
new file mode 100644
index 00000000..bc949f1e
--- /dev/null
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/chat/character/controller/ChatCharacterControllerTest.kt
@@ -0,0 +1,118 @@
+package kr.co.vividnext.sodalive.chat.character.controller
+
+import kr.co.vividnext.sodalive.chat.character.ChatCharacter
+import kr.co.vividnext.sodalive.chat.character.ChatCharacterBanner
+import kr.co.vividnext.sodalive.chat.character.comment.CharacterCommentService
+import kr.co.vividnext.sodalive.chat.character.curation.CharacterCurationQueryService
+import kr.co.vividnext.sodalive.chat.character.dto.RecentCharactersResponse
+import kr.co.vividnext.sodalive.chat.character.service.ChatCharacterBannerService
+import kr.co.vividnext.sodalive.chat.character.service.ChatCharacterService
+import kr.co.vividnext.sodalive.chat.character.translate.AiCharacterTranslationRepository
+import kr.co.vividnext.sodalive.chat.room.service.ChatRoomService
+import kr.co.vividnext.sodalive.i18n.Lang
+import kr.co.vividnext.sodalive.i18n.LangContext
+import kr.co.vividnext.sodalive.i18n.translation.PapagoTranslationService
+import kr.co.vividnext.sodalive.member.contentpreference.MemberContentPreferenceService
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertTrue
+import org.junit.jupiter.api.Test
+import org.mockito.Mockito
+import org.springframework.data.domain.PageImpl
+import org.springframework.data.domain.PageRequest
+
+class ChatCharacterControllerTest {
+    private val service = Mockito.mock(ChatCharacterService::class.java)
+    private val bannerService = Mockito.mock(ChatCharacterBannerService::class.java)
+    private val chatRoomService = Mockito.mock(ChatRoomService::class.java)
+    private val characterCommentService = Mockito.mock(CharacterCommentService::class.java)
+    private val curationQueryService = Mockito.mock(CharacterCurationQueryService::class.java)
+    private val translationService = Mockito.mock(PapagoTranslationService::class.java)
+    private val aiCharacterTranslationRepository = Mockito.mock(AiCharacterTranslationRepository::class.java)
+    private val langContext = LangContext().apply { setLang(Lang.JA) }
+    private val memberContentPreferenceService = Mockito.mock(MemberContentPreferenceService::class.java)
+    private val controller = ChatCharacterController(
+        service = service,
+        bannerService = bannerService,
+        chatRoomService = chatRoomService,
+        characterCommentService = characterCommentService,
+        curationQueryService = curationQueryService,
+        translationService = translationService,
+        aiCharacterTranslationRepository = aiCharacterTranslationRepository,
+        langContext = langContext,
+        memberContentPreferenceService = memberContentPreferenceService,
+        imageHost = "https://cdn.test"
+    )
+
+    @Test
+    fun shouldUseJapaneseBannerWhenLangContextIsJapanese() {
+        val pageable = PageRequest.of(0, 10)
+        val banner = createBanner(id = 1L, imagePath = "banner/jp.png", lang = Lang.JA)
+
+        Mockito.`when`(bannerService.getDisplayBanners(pageable, Lang.JA))
+            .thenReturn(PageImpl(listOf(banner), pageable, 1))
+        Mockito.`when`(service.getPopularCharacters(locale = "ja")).thenReturn(emptyList())
+        Mockito.`when`(service.getRecentCharactersPage(page = 0, size = 50))
+            .thenReturn(RecentCharactersResponse(totalCount = 0, content = emptyList()))
+        Mockito.`when`(service.getRecommendCharacters(emptyList(), 30)).thenReturn(emptyList())
+        Mockito.`when`(curationQueryService.getActiveCurationsWithCharacters()).thenReturn(emptyList())
+
+        val response = controller.getCharacterMain(member = null)
+
+        assertTrue(response.success)
+        assertEquals(1, response.data?.banners?.size)
+        assertEquals(1L, response.data?.banners?.first()?.characterId)
+        assertEquals("https://cdn.test/banner/jp.png", response.data?.banners?.first()?.imageUrl)
+        Mockito.verify(bannerService).getDisplayBanners(pageable, Lang.JA)
+    }
+
+    @Test
+    fun shouldUseEnglishRequestWithKoreanFallbackBanner() {
+        val controller = ChatCharacterController(
+            service = service,
+            bannerService = bannerService,
+            chatRoomService = chatRoomService,
+            characterCommentService = characterCommentService,
+            curationQueryService = curationQueryService,
+            translationService = translationService,
+            aiCharacterTranslationRepository = aiCharacterTranslationRepository,
+            langContext = LangContext().apply { setLang(Lang.EN) },
+            memberContentPreferenceService = memberContentPreferenceService,
+            imageHost = "https://cdn.test"
+        )
+        val pageable = PageRequest.of(0, 10)
+        val banner = createBanner(id = 2L, imagePath = "banner/ko.png", lang = Lang.KO)
+
+        Mockito.`when`(bannerService.getDisplayBanners(pageable, Lang.EN))
+            .thenReturn(PageImpl(listOf(banner), pageable, 1))
+        Mockito.`when`(service.getPopularCharacters(locale = "en")).thenReturn(emptyList())
+        Mockito.`when`(service.getRecentCharactersPage(page = 0, size = 50))
+            .thenReturn(RecentCharactersResponse(totalCount = 0, content = emptyList()))
+        Mockito.`when`(service.getRecommendCharacters(emptyList(), 30)).thenReturn(emptyList())
+        Mockito.`when`(curationQueryService.getActiveCurationsWithCharacters()).thenReturn(emptyList())
+
+        val response = controller.getCharacterMain(member = null)
+
+        assertTrue(response.success)
+        assertEquals("https://cdn.test/banner/ko.png", response.data?.banners?.first()?.imageUrl)
+        Mockito.verify(bannerService).getDisplayBanners(pageable, Lang.EN)
+    }
+
+    private fun createBanner(id: Long, imagePath: String, lang: Lang): ChatCharacterBanner {
+        val character = ChatCharacter(
+            characterUUID = "character-$id",
+            name = "character-$id",
+            description = "description-$id",
+            systemPrompt = "system-prompt-$id"
+        )
+        character.id = id
+
+        return ChatCharacterBanner(
+            imagePath = imagePath,
+            chatCharacter = character,
+            sortOrder = 1,
+            lang = lang
+        ).also {
+            it.id = id
+        }
+    }
+}
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/chat/character/service/ChatCharacterBannerServiceTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/chat/character/service/ChatCharacterBannerServiceTest.kt
new file mode 100644
index 00000000..8475c57f
--- /dev/null
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/chat/character/service/ChatCharacterBannerServiceTest.kt
@@ -0,0 +1,177 @@
+package kr.co.vividnext.sodalive.chat.character.service
+
+import kr.co.vividnext.sodalive.chat.character.ChatCharacter
+import kr.co.vividnext.sodalive.chat.character.ChatCharacterBanner
+import kr.co.vividnext.sodalive.chat.character.repository.ChatCharacterBannerRepository
+import kr.co.vividnext.sodalive.chat.character.repository.ChatCharacterRepository
+import kr.co.vividnext.sodalive.i18n.Lang
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.mockito.Mockito
+import org.springframework.data.domain.PageImpl
+import org.springframework.data.domain.PageRequest
+import java.util.Optional
+
+class ChatCharacterBannerServiceTest {
+    private lateinit var bannerRepository: ChatCharacterBannerRepository
+    private lateinit var characterRepository: ChatCharacterRepository
+    private lateinit var service: ChatCharacterBannerService
+
+    @BeforeEach
+    fun setUp() {
+        bannerRepository = Mockito.mock(ChatCharacterBannerRepository::class.java)
+        characterRepository = Mockito.mock(ChatCharacterRepository::class.java)
+        service = ChatCharacterBannerService(
+            bannerRepository = bannerRepository,
+            characterRepository = characterRepository
+        )
+    }
+
+    @Test
+    @DisplayName("일본어 배너 등록 요청은 JA 언어값으로 저장한다")
+    fun shouldRegisterJapaneseBanner() {
+        val character = createCharacter(id = 1L)
+
+        Mockito.`when`(characterRepository.findById(1L)).thenReturn(Optional.of(character))
+        Mockito.`when`(bannerRepository.findMaxSortOrder()).thenReturn(3)
+        Mockito.`when`(bannerRepository.save(Mockito.any(ChatCharacterBanner::class.java))).thenAnswer { it.arguments[0] }
+
+        val banner = service.registerBanner(
+            characterId = 1L,
+            imagePath = "banner/jp.png",
+            lang = Lang.JA
+        )
+
+        assertEquals(Lang.JA, banner.lang)
+        assertEquals(4, banner.sortOrder)
+        assertEquals("banner/jp.png", banner.imagePath)
+    }
+
+    @Test
+    @DisplayName("기본 배너 등록 요청은 언어값이 없으면 KO로 저장한다")
+    fun shouldRegisterDefaultBannerAsKoreanWhenLangIsNull() {
+        val character = createCharacter(id = 2L)
+
+        Mockito.`when`(characterRepository.findById(2L)).thenReturn(Optional.of(character))
+        Mockito.`when`(bannerRepository.findMaxSortOrder()).thenReturn(null)
+        Mockito.`when`(bannerRepository.save(Mockito.any(ChatCharacterBanner::class.java))).thenAnswer { it.arguments[0] }
+
+        val banner = service.registerBanner(
+            characterId = 2L,
+            imagePath = "banner/default.png",
+            lang = null
+        )
+
+        assertEquals(Lang.KO, banner.lang)
+        assertEquals(1, banner.sortOrder)
+    }
+
+    @Test
+    @DisplayName("영어 배너 등록 요청은 EN 언어값으로 저장한다")
+    fun shouldRegisterEnglishBanner() {
+        val character = createCharacter(id = 3L)
+
+        Mockito.`when`(characterRepository.findById(3L)).thenReturn(Optional.of(character))
+        Mockito.`when`(bannerRepository.findMaxSortOrder()).thenReturn(5)
+        Mockito.`when`(bannerRepository.save(Mockito.any(ChatCharacterBanner::class.java))).thenAnswer { it.arguments[0] }
+
+        val banner = service.registerBanner(
+            characterId = 3L,
+            imagePath = "banner/en.png",
+            lang = Lang.EN
+        )
+
+        assertEquals(Lang.EN, banner.lang)
+        assertEquals(6, banner.sortOrder)
+    }
+
+    @Test
+    @DisplayName("일본어 사용자는 일본어 배너만 조회한다")
+    fun shouldReturnJapaneseBannersForJapaneseUser() {
+        val pageable = PageRequest.of(0, 10)
+        val japaneseBanner = ChatCharacterBanner(
+            imagePath = "banner/jp.png",
+            chatCharacter = createCharacter(id = 4L),
+            sortOrder = 1,
+            lang = Lang.JA
+        )
+        val expectedPage = PageImpl(listOf(japaneseBanner), pageable, 1)
+
+        Mockito.`when`(bannerRepository.findByIsActiveTrueAndLangOrderBySortOrderAsc(Lang.JA, pageable))
+            .thenReturn(expectedPage)
+
+        val actual = service.getDisplayBanners(pageable, Lang.JA)
+
+        assertEquals(expectedPage, actual)
+        Mockito.verify(bannerRepository).findByIsActiveTrueAndLangOrderBySortOrderAsc(Lang.JA, pageable)
+        Mockito.verify(bannerRepository, Mockito.never())
+            .findByIsActiveTrueAndLangOrderBySortOrderAsc(
+                Lang.KO,
+                pageable
+            )
+    }
+
+    @Test
+    @DisplayName("한국어 사용자는 한국어 배너를 조회한다")
+    fun shouldReturnKoreanBannersForKoreanUser() {
+        val pageable = PageRequest.of(0, 10)
+        val defaultBanner = ChatCharacterBanner(
+            imagePath = "banner/ko.png",
+            chatCharacter = createCharacter(id = 5L),
+            sortOrder = 1,
+            lang = Lang.KO
+        )
+        val expectedPage = PageImpl(listOf(defaultBanner), pageable, 1)
+
+        Mockito.`when`(bannerRepository.findByIsActiveTrueAndLangOrderBySortOrderAsc(Lang.KO, pageable))
+            .thenReturn(expectedPage)
+
+        val actual = service.getDisplayBanners(pageable, Lang.KO)
+
+        assertEquals(expectedPage, actual)
+        Mockito.verify(bannerRepository).findByIsActiveTrueAndLangOrderBySortOrderAsc(Lang.KO, pageable)
+        Mockito.verify(bannerRepository, Mockito.never())
+            .findByIsActiveTrueAndLangOrderBySortOrderAsc(
+                Lang.JA,
+                pageable
+            )
+    }
+
+    @Test
+    @DisplayName("영어 배너가 없으면 한국어 배너로 fallback 한다")
+    fun shouldFallbackToKoreanWhenEnglishBannerDoesNotExist() {
+        val pageable = PageRequest.of(0, 10)
+        val englishPage = PageImpl<ChatCharacterBanner>(emptyList(), pageable, 0)
+        val koreanBanner = ChatCharacterBanner(
+            imagePath = "banner/ko.png",
+            chatCharacter = createCharacter(id = 6L),
+            sortOrder = 1,
+            lang = Lang.KO
+        )
+        val koreanPage = PageImpl(listOf(koreanBanner), pageable, 1)
+
+        Mockito.`when`(bannerRepository.findByIsActiveTrueAndLangOrderBySortOrderAsc(Lang.EN, pageable))
+            .thenReturn(englishPage)
+        Mockito.`when`(bannerRepository.findByIsActiveTrueAndLangOrderBySortOrderAsc(Lang.KO, pageable))
+            .thenReturn(koreanPage)
+
+        val actual = service.getDisplayBanners(pageable, Lang.EN)
+
+        assertEquals(koreanPage, actual)
+        Mockito.verify(bannerRepository).findByIsActiveTrueAndLangOrderBySortOrderAsc(Lang.EN, pageable)
+        Mockito.verify(bannerRepository).findByIsActiveTrueAndLangOrderBySortOrderAsc(Lang.KO, pageable)
+    }
+
+    private fun createCharacter(id: Long): ChatCharacter {
+        val character = ChatCharacter(
+            characterUUID = "character-$id",
+            name = "character-$id",
+            description = "description-$id",
+            systemPrompt = "system-prompt-$id"
+        )
+        character.id = id
+        return character
+    }
+}
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/content/main/banner/AudioContentBannerRepositoryTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/content/main/banner/AudioContentBannerRepositoryTest.kt
new file mode 100644
index 00000000..ddf5792b
--- /dev/null
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/content/main/banner/AudioContentBannerRepositoryTest.kt
@@ -0,0 +1,45 @@
+package kr.co.vividnext.sodalive.content.main.banner
+
+import kr.co.vividnext.sodalive.configs.QueryDslConfig
+import kr.co.vividnext.sodalive.i18n.Lang
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest
+import org.springframework.context.annotation.Import
+
+@DataJpaTest
+@Import(QueryDslConfig::class)
+class AudioContentBannerRepositoryTest @Autowired constructor(
+    private val repository: AudioContentBannerRepository
+) {
+    @Test
+    @DisplayName("사용자 배너 조회는 요청 언어와 일치하는 배너만 반환한다")
+    fun shouldReturnOnlyRequestedLanguageBanners() {
+        repository.saveAndFlush(
+            AudioContentBanner(
+                thumbnailImage = "banner/ko.png",
+                type = AudioContentBannerType.LINK,
+                lang = Lang.KO
+            ).apply {
+                link = "https://ko.example.com"
+            }
+        )
+        repository.saveAndFlush(
+            AudioContentBanner(
+                thumbnailImage = "banner/ja.png",
+                type = AudioContentBannerType.LINK,
+                lang = Lang.JA
+            ).apply {
+                link = "https://ja.example.com"
+            }
+        )
+
+        val banners = repository.getAudioContentMainBannerList(tabId = 1L, isAdult = false, lang = Lang.JA)
+
+        assertEquals(1, banners.size)
+        assertEquals(Lang.JA, banners.first().lang)
+        assertEquals("https://ja.example.com", banners.first().link)
+    }
+}
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/content/series/main/SeriesMainControllerTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/content/series/main/SeriesMainControllerTest.kt
new file mode 100644
index 00000000..a560232b
--- /dev/null
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/content/series/main/SeriesMainControllerTest.kt
@@ -0,0 +1,105 @@
+package kr.co.vividnext.sodalive.content.series.main
+
+import kr.co.vividnext.sodalive.content.ContentType
+import kr.co.vividnext.sodalive.content.series.ContentSeriesService
+import kr.co.vividnext.sodalive.content.series.GetSeriesListResponse
+import kr.co.vividnext.sodalive.content.series.main.banner.ContentSeriesBannerService
+import kr.co.vividnext.sodalive.content.series.main.banner.SeriesBanner
+import kr.co.vividnext.sodalive.creator.admin.content.series.Series
+import kr.co.vividnext.sodalive.i18n.Lang
+import kr.co.vividnext.sodalive.i18n.LangContext
+import kr.co.vividnext.sodalive.member.Member
+import kr.co.vividnext.sodalive.member.contentpreference.MemberContentPreferenceService
+import kr.co.vividnext.sodalive.member.contentpreference.ViewerContentPreference
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertTrue
+import org.junit.jupiter.api.Test
+import org.mockito.Mockito
+import org.springframework.data.domain.PageImpl
+import org.springframework.data.domain.PageRequest
+
+class SeriesMainControllerTest {
+    private val contentSeriesService = Mockito.mock(ContentSeriesService::class.java)
+    private val bannerService = Mockito.mock(ContentSeriesBannerService::class.java)
+    private val langContext = LangContext().apply { setLang(Lang.JA) }
+    private val memberContentPreferenceService = Mockito.mock(MemberContentPreferenceService::class.java)
+    private val controller = SeriesMainController(
+        contentSeriesService = contentSeriesService,
+        bannerService = bannerService,
+        langContext = langContext,
+        memberContentPreferenceService = memberContentPreferenceService,
+        imageHost = "https://cdn.test"
+    )
+
+    @Test
+    fun shouldFetchOnlyRequestedLanguageBanners() {
+        val member = createMember(id = 1L)
+        val preference = ViewerContentPreference(
+            countryCode = "KR",
+            isAdultContentVisible = true,
+            contentType = ContentType.ALL,
+            isAdult = true
+        )
+        val pageable = PageRequest.of(0, 10)
+        val japaneseBanner = SeriesBanner(
+            imagePath = "banner/jp.png",
+            series = createSeries(id = 10L),
+            sortOrder = 1,
+            lang = Lang.JA
+        ).also {
+            it.id = 100L
+        }
+
+        Mockito.`when`(memberContentPreferenceService.resolveForQuery(member)).thenReturn(preference)
+        Mockito.`when`(bannerService.getDisplayBanners(pageable, Lang.JA))
+            .thenReturn(PageImpl(listOf(japaneseBanner), pageable, 1))
+        Mockito.`when`(
+            contentSeriesService.getSeriesList(
+                null,
+                false,
+                true,
+                true,
+                true,
+                ContentType.ALL,
+                member,
+                0,
+                20
+            )
+        ).thenReturn(GetSeriesListResponse(totalCount = 0, items = emptyList()))
+        Mockito.`when`(
+            contentSeriesService.getRecommendSeriesList(
+                true,
+                ContentType.ALL,
+                member
+            )
+        ).thenReturn(emptyList())
+
+        val response = controller.fetchData(member)
+
+        assertTrue(response.success)
+        assertEquals(1, response.data?.banners?.size)
+        assertEquals("series-10", response.data?.banners?.first()?.seriesTitle)
+        Mockito.verify(bannerService).getDisplayBanners(pageable, Lang.JA)
+        Mockito.verify(bannerService, Mockito.never()).getActiveBanners(pageable)
+    }
+
+    private fun createMember(id: Long): Member {
+        return Member(
+            email = "member-$id@test.com",
+            password = "password",
+            nickname = "member-$id"
+        ).also {
+            it.id = id
+        }
+    }
+
+    private fun createSeries(id: Long): Series {
+        return Series(
+            title = "series-$id",
+            introduction = "introduction-$id",
+            languageCode = "ja"
+        ).also {
+            it.id = id
+        }
+    }
+}
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/content/series/main/banner/ContentSeriesBannerServiceTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/content/series/main/banner/ContentSeriesBannerServiceTest.kt
new file mode 100644
index 00000000..ce77f408
--- /dev/null
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/content/series/main/banner/ContentSeriesBannerServiceTest.kt
@@ -0,0 +1,100 @@
+package kr.co.vividnext.sodalive.content.series.main.banner
+
+import kr.co.vividnext.sodalive.admin.content.series.AdminContentSeriesRepository
+import kr.co.vividnext.sodalive.creator.admin.content.series.Series
+import kr.co.vividnext.sodalive.i18n.Lang
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.mockito.Mockito
+import org.springframework.data.domain.PageImpl
+import org.springframework.data.domain.PageRequest
+
+class ContentSeriesBannerServiceTest {
+    private lateinit var bannerRepository: SeriesBannerRepository
+    private lateinit var seriesRepository: AdminContentSeriesRepository
+    private lateinit var service: ContentSeriesBannerService
+
+    @BeforeEach
+    fun setUp() {
+        bannerRepository = Mockito.mock(SeriesBannerRepository::class.java)
+        seriesRepository = Mockito.mock(AdminContentSeriesRepository::class.java)
+        service = ContentSeriesBannerService(
+            bannerRepository = bannerRepository,
+            seriesRepository = seriesRepository
+        )
+    }
+
+    @Test
+    @DisplayName("일본어 배너 등록 요청은 JA 언어값으로 저장한다")
+    fun shouldRegisterJapaneseBanner() {
+        val series = createSeries(id = 1L)
+
+        Mockito.`when`(seriesRepository.findByIdAndActiveTrue(1L)).thenReturn(series)
+        Mockito.`when`(bannerRepository.findMaxSortOrder()).thenReturn(2)
+        Mockito.`when`(bannerRepository.save(Mockito.any(SeriesBanner::class.java))).thenAnswer { it.arguments[0] }
+
+        val banner = service.registerBanner(
+            seriesId = 1L,
+            imagePath = "banner/jp.png",
+            lang = Lang.JA
+        )
+
+        assertEquals(Lang.JA, banner.lang)
+        assertEquals(3, banner.sortOrder)
+        assertEquals("banner/jp.png", banner.imagePath)
+    }
+
+    @Test
+    @DisplayName("언어가 없는 배너 등록 요청은 KO로 저장한다")
+    fun shouldRegisterKoreanBannerWhenLangIsMissing() {
+        val series = createSeries(id = 2L)
+
+        Mockito.`when`(seriesRepository.findByIdAndActiveTrue(2L)).thenReturn(series)
+        Mockito.`when`(bannerRepository.findMaxSortOrder()).thenReturn(null)
+        Mockito.`when`(bannerRepository.save(Mockito.any(SeriesBanner::class.java))).thenAnswer { it.arguments[0] }
+
+        val banner = service.registerBanner(
+            seriesId = 2L,
+            imagePath = "banner/default.png",
+            lang = null
+        )
+
+        assertEquals(Lang.KO, banner.lang)
+        assertEquals(1, banner.sortOrder)
+    }
+
+    @Test
+    @DisplayName("일본어 사용자는 일본어 배너만 조회한다")
+    fun shouldReturnJapaneseBannersForJapaneseUser() {
+        val pageable = PageRequest.of(0, 10)
+        val japaneseBanner = SeriesBanner(
+            imagePath = "banner/jp.png",
+            series = createSeries(id = 3L),
+            sortOrder = 1,
+            lang = Lang.JA
+        )
+        val expectedPage = PageImpl(listOf(japaneseBanner), pageable, 1)
+
+        Mockito.`when`(bannerRepository.findByIsActiveTrueAndLangOrderBySortOrderAsc(Lang.JA, pageable))
+            .thenReturn(expectedPage)
+
+        val actual = service.getDisplayBanners(pageable, Lang.JA)
+
+        assertEquals(expectedPage, actual)
+        Mockito.verify(bannerRepository).findByIsActiveTrueAndLangOrderBySortOrderAsc(Lang.JA, pageable)
+        Mockito.verify(bannerRepository, Mockito.never())
+            .findByIsActiveTrueOrderBySortOrderAsc(pageable)
+    }
+
+    private fun createSeries(id: Long): Series {
+        return Series(
+            title = "series-$id",
+            introduction = "introduction-$id",
+            languageCode = "ko"
+        ).also {
+            it.id = id
+        }
+    }
+}
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendRepositoryTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendRepositoryTest.kt
index f0a75628..a1de892a 100644
--- a/src/test/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendRepositoryTest.kt
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendRepositoryTest.kt
@@ -2,6 +2,7 @@ package kr.co.vividnext.sodalive.live.recommend
 
 import com.querydsl.jpa.impl.JPAQueryFactory
 import kr.co.vividnext.sodalive.configs.QueryDslConfig
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.MemberRepository
 import kr.co.vividnext.sodalive.member.MemberRole
@@ -10,6 +11,7 @@ import kr.co.vividnext.sodalive.member.block.BlockMemberRepository
 import kr.co.vividnext.sodalive.member.following.CreatorFollowing
 import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.DisplayName
 import org.junit.jupiter.api.Test
 import org.springframework.beans.factory.annotation.Autowired
 import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest
@@ -34,6 +36,7 @@ class LiveRecommendRepositoryTest @Autowired constructor(
     }
 
     @Test
+    @DisplayName("추천 크리에이터 조회는 차단 관계를 양방향으로 제외한다")
     fun shouldExcludeBlockedCreatorsInBothDirections() {
         val viewer = saveMember(nickname = "viewer", role = MemberRole.USER)
         val creatorBlockedByViewer = saveMember(nickname = "creator-blocked-by-viewer", role = MemberRole.CREATOR)
@@ -50,13 +53,14 @@ class LiveRecommendRepositoryTest @Autowired constructor(
         entityManager.flush()
         entityManager.clear()
 
-        val result = liveRecommendRepository.getRecommendLive(memberId = viewer.id, isAdult = true)
+        val result = liveRecommendRepository.getRecommendLive(memberId = viewer.id, isAdult = true, lang = Lang.KO)
 
         assertEquals(1, result.size)
         assertEquals(creatorAllowed.id, result[0].creatorId)
     }
 
     @Test
+    @DisplayName("추천 크리에이터 조회는 비활성 차단 관계를 제외하지 않는다")
     fun shouldKeepCreatorWhenBlockRelationIsInactive() {
         val viewer = saveMember(nickname = "viewer-inactive", role = MemberRole.USER)
         val creator = saveMember(nickname = "creator-inactive", role = MemberRole.CREATOR)
@@ -67,13 +71,14 @@ class LiveRecommendRepositoryTest @Autowired constructor(
         entityManager.flush()
         entityManager.clear()
 
-        val result = liveRecommendRepository.getRecommendLive(memberId = viewer.id, isAdult = true)
+        val result = liveRecommendRepository.getRecommendLive(memberId = viewer.id, isAdult = true, lang = Lang.KO)
 
         assertEquals(1, result.size)
         assertEquals(creator.id, result[0].creatorId)
     }
 
     @Test
+    @DisplayName("크리에이터 팔로잉 전체 조회는 알림 여부를 포함한다")
     fun shouldReturnFollowingCreatorListWithNotifyFlag() {
         val viewer = saveMember(nickname = "viewer-following", role = MemberRole.USER)
         val creatorA = saveMember(nickname = "creator-following-a", role = MemberRole.CREATOR)
@@ -98,6 +103,25 @@ class LiveRecommendRepositoryTest @Autowired constructor(
         assertEquals(false, isNotifyByCreatorId[creatorB.id])
     }
 
+    @Test
+    @DisplayName("추천 크리에이터 조회는 요청 언어와 일치하는 배너만 반환한다")
+    fun shouldReturnOnlyRequestedLanguageBanners() {
+        val viewer = saveMember(nickname = "viewer-lang", role = MemberRole.USER)
+        val koreanCreator = saveMember(nickname = "creator-ko", role = MemberRole.CREATOR)
+        val japaneseCreator = saveMember(nickname = "creator-ja", role = MemberRole.CREATOR)
+
+        saveBanner(creator = koreanCreator, order = 1, lang = Lang.KO)
+        saveBanner(creator = japaneseCreator, order = 2, lang = Lang.JA)
+
+        entityManager.flush()
+        entityManager.clear()
+
+        val result = liveRecommendRepository.getRecommendLive(memberId = viewer.id, isAdult = true, lang = Lang.JA)
+
+        assertEquals(1, result.size)
+        assertEquals(japaneseCreator.id, result.first().creatorId)
+    }
+
     private fun saveMember(nickname: String, role: MemberRole): Member {
         return memberRepository.saveAndFlush(
             Member(
@@ -110,11 +134,12 @@ class LiveRecommendRepositoryTest @Autowired constructor(
         )
     }
 
-    private fun saveBanner(creator: Member, order: Int) {
+    private fun saveBanner(creator: Member, order: Int, lang: Lang = Lang.KO) {
         val banner = RecommendLiveCreatorBanner(
             startDate = LocalDateTime.now().minusDays(1),
             endDate = LocalDateTime.now().plusDays(1),
             isAdult = false,
+            lang = lang,
             orders = order,
             image = "recommend/$order.png"
         )
diff --git a/src/test/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendServiceTest.kt b/src/test/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendServiceTest.kt
index 2190e34a..db60bf77 100644
--- a/src/test/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendServiceTest.kt
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/live/recommend/LiveRecommendServiceTest.kt
@@ -1,5 +1,6 @@
 package kr.co.vividnext.sodalive.live.recommend
 
+import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.member.Member
 import kr.co.vividnext.sodalive.member.auth.Auth
 import kr.co.vividnext.sodalive.member.block.BlockMemberRepository
@@ -58,12 +59,12 @@ class LiveRecommendServiceTest {
                 isAdult = true
             )
         )
-        Mockito.`when`(liveRecommendCacheService.getRecommendLive(memberId = member.id, isAdult = true)).thenReturn(expected)
+        Mockito.`when`(liveRecommendCacheService.getRecommendLive(member.id, true, Lang.JA)).thenReturn(expected)
 
-        val result = service.getRecommendLive(member)
+        val result = service.getRecommendLive(member, Lang.JA)
 
         assertEquals(expected, result)
-        Mockito.verify(liveRecommendCacheService).getRecommendLive(memberId = member.id, isAdult = true)
+        Mockito.verify(liveRecommendCacheService).getRecommendLive(member.id, true, Lang.JA)
         Mockito.verifyNoInteractions(repository)
         Mockito.verifyNoInteractions(blockMemberRepository)
     }
@@ -71,12 +72,12 @@ class LiveRecommendServiceTest {
     @Test
     fun shouldDelegateToRepositoryAsGuestWhenMemberIsNull() {
         val expected = listOf(GetRecommendLiveResponse(imageUrl = "https://cdn.test/recommend-guest.png", creatorId = 88L))
-        Mockito.`when`(liveRecommendCacheService.getRecommendLive(memberId = null, isAdult = false)).thenReturn(expected)
+        Mockito.`when`(liveRecommendCacheService.getRecommendLive(null, false, Lang.EN)).thenReturn(expected)
 
-        val result = service.getRecommendLive(null)
+        val result = service.getRecommendLive(null, Lang.EN)
 
         assertEquals(expected, result)
-        Mockito.verify(liveRecommendCacheService).getRecommendLive(memberId = null, isAdult = false)
+        Mockito.verify(liveRecommendCacheService).getRecommendLive(null, false, Lang.EN)
         Mockito.verifyNoInteractions(repository)
         Mockito.verifyNoInteractions(blockMemberRepository)
         Mockito.verifyNoInteractions(memberContentPreferenceService)
diff --git a/work/scripts/check-commit-message-rules.sh b/work/scripts/check-commit-message-rules.sh
index f95abbe3..7be904db 100755
--- a/work/scripts/check-commit-message-rules.sh
+++ b/work/scripts/check-commit-message-rules.sh
@@ -112,6 +112,18 @@ if [ -n "$body" ] && printf '%s\n' "$body" | grep -Eq '^Refs:'; then
     fi
 fi
 
+if [ -n "$body" ]; then
+    if printf '%s\n' "$body" | grep -Fq 'Ultraworked with [Sisyphus]'; then
+        echo "[FAIL] Sisyphus attribution footer must not be included"
+        exit_code=1
+    fi
+
+    if printf '%s\n' "$body" | grep -Ei '^Co-authored-by:[[:space:]]*Sisyphus[[:space:]]*<clio-agent@sisyphuslabs\.ai>$' >/dev/null; then
+        echo "[FAIL] Automatic Sisyphus co-author footer must not be included"
+        exit_code=1
+    fi
+fi
+
 if [ $exit_code -eq 0 ]; then
     echo "[PASS] Commit message follows AGENTS.md rules"
 else