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--- a/docs/20260421_라이브방무료여부응답추가.md
+++ b/docs/20260421_라이브방무료여부응답추가.md
@@ -0,0 +1,12 @@
+# 라이브방 무료 여부 응답 추가
+
+- [x] `GetRoomInfoResponse`에 라이브방 무료 여부 필드 추가
+- [x] `GetRoomInfoResponse` 생성 경로에 무료 여부 매핑 반영
+- [x] 관련 검증 수행 및 결과 기록
+
+## 검증 기록
+
+### 1차 구현
+- 무엇을: `GetRoomInfoResponse`에 `isFreeRoom` 필드를 추가하고, `LiveRoomService`에서 `room.price == 0` 결과를 응답에 매핑했다.
+- 왜: 라이브방 정보 응답에서 클라이언트가 무료방 여부를 직접 판별할 수 있어야 하기 때문이다.
+- 어떻게: Kotlin `.kt` 파일은 현재 LSP 진단을 지원하지 않아 `lsp_diagnostics` 검증은 불가함을 확인했고, `./gradlew test`를 실행해 main/test 컴파일과 테스트를 함께 검증했으며 `BUILD SUCCESSFUL`을 확인했다. 로컬 실행 환경이 이 세션에 준비되지 않아 실제 API 호출 기반 수동 QA는 수행하지 못했다.
--- a/docs/20260421_오리지널시리즈정산내역.md
+++ b/docs/20260421_오리지널시리즈정산내역.md
@@ -0,0 +1,244 @@
+# 오리지널 시리즈 작품 화별 정산 내역 추가 작업 계획
+
+- [x] 기존 관리자 정산 API 패턴(`/admin/calculate`, list/excel 쌍, `StreamingResponseBody`)을 유지하는 신규 패키지 구조를 확정한다.
+- [x] `kr.co.vividnext.sodalive.admin.calculate.originalSeries` 패키지에 오리지널 시리즈 소지 유저 조회 API를 추가한다.
+- [x] `kr.co.vividnext.sodalive.admin.calculate.originalSeries` 패키지에 오리지널 시리즈 정산 내역 조회 API를 추가한다.
+- [x] 정산 내역 조회 API가 `start_date`, `end_date`, `creator_id`를 받아 KST 입력 날짜를 UTC 조회 범위로 변환하도록 구현한다.
+- [x] 정산 내역 조회 쿼리가 `Series(isOriginal = true) -> SeriesContent -> AudioContent -> Order` 경로를 사용해 `Content.id`, `Order.type` 기준으로 그룹화되도록 구현한다.
+- [x] 정산 내역 결과에 시리즈 타이틀, 콘텐츠 타이틀, 가격, 대여/소장 여부, 판매 수, 합계(캔), 합계(포인트)를 포함하도록 DTO를 추가한다.
+- [x] 가격은 주문에 저장된 값을 기준으로 사용하되, 대여는 `ceil(price * 0.7)` 규칙이 반영된 값으로 노출되도록 검증한다.
+- [x] 오리지널 시리즈 정산 내역 엑셀 다운로드 API를 추가하고, 오리지널 시리즈를 소지한 유저별로 시트를 구성하도록 구현한다.
+- [x] 엑셀 다운로드는 각 유저 시트에 헤더 행과 정산 내역 행을 기록하고, 데이터가 없어도 헤더가 있는 시트를 유지하도록 구현한다.
+- [x] 신규 QueryRepository/Service/Controller에 대한 테스트를 먼저 작성하고 실패를 확인한 뒤 구현한다.
+- [x] 관련 테스트, 정적 진단, 수동 검증 결과를 확인하고 이 문서 하단 검증 기록에 남긴다.
+
+## 구현 메모
+
+- 오리지널 시리즈 여부는 `Series.isOriginal` 플래그를 기준으로 판단한다.
+- 소지 유저는 현재 코드베이스 기준 `Series.member`를 의미하는 것으로 해석한다.
+- 날짜 입력 파라미터는 `start_date`, `end_date`, `creator_id`로 받고, 날짜 값은 KST 기준 `00:00:00` / `23:59:59`로 해석한 뒤 `convertLocalDateTime()`으로 UTC `LocalDateTime`으로 변환한다.
+- 정산 내역 조회 API는 `creator_id`를 필수 필터로 사용하고, 엑셀 API는 전체 소지 유저를 순회해 시트를 생성하는 것으로 해석한다.
+
+## API 명세
+
+### 1. 오리지널 시리즈 소지 유저 조회
+
+#### URI
+- `GET /admin/calculate/original-series/owners`
+
+#### Request
+- Header
+  - 인증: 관리자 권한 필요 (`hasRole('ADMIN')`)
+- Query Parameter
+  - 없음
+- Body
+  - 없음
+
+#### Response
+- Content-Type: `application/json`
+- 응답 구조
+
+```json
+{
+  "success": true,
+  "message": null,
+  "data": [
+    {
+      "creatorId": 1,
+      "nickname": "owner-a"
+    },
+    {
+      "creatorId": 2,
+      "nickname": "owner-b"
+    }
+  ],
+  "errorProperty": null
+}
+```
+
+#### Response Field
+- `success`: 성공 여부
+- `message`: 성공 메시지, 현재 구현에서는 `null`
+- `data`: 오리지널 시리즈 소지 유저 목록
+  - `creatorId`: 정산 내역 조회에 사용할 크리에이터 ID
+  - `nickname`: 관리자 화면에 노출할 닉네임
+- `errorProperty`: 에러 시 사용되는 필드, 성공 시 `null`
+
+### 2. 오리지널 시리즈 정산 내역 조회
+
+#### URI
+- `GET /admin/calculate/original-series/settlement-details`
+
+#### Request
+- Header
+  - 인증: 관리자 권한 필요 (`hasRole('ADMIN')`)
+- Query Parameter
+  - `start_date`: 시작일, 형식 `yyyy-MM-dd`, KST 기준
+  - `end_date`: 종료일, 형식 `yyyy-MM-dd`, KST 기준
+  - `creator_id`: 오리지널 시리즈 소지 유저 ID
+  - `page`: 페이지 번호, Spring `Pageable` 규칙 사용
+  - `size`: 페이지 크기, Spring `Pageable` 규칙 사용
+- Body
+  - 없음
+
+#### Request Example
+
+```text
+GET /admin/calculate/original-series/settlement-details?start_date=2026-04-01&end_date=2026-04-30&creator_id=1&page=0&size=20
+```
+
+#### Response
+- Content-Type: `application/json`
+- 응답 구조
+
+```json
+{
+  "success": true,
+  "message": null,
+  "data": {
+    "totalCount": 2,
+    "items": [
+      {
+        "seriesTitle": "오리지널 시리즈",
+        "contentTitle": "1화",
+        "price": 70,
+        "orderType": "대여",
+        "salesCount": 2,
+        "totalCan": 130,
+        "totalPoint": 100
+      },
+      {
+        "seriesTitle": "오리지널 시리즈",
+        "contentTitle": "1화",
+        "price": 100,
+        "orderType": "소장",
+        "salesCount": 2,
+        "totalCan": 200,
+        "totalPoint": 25
+      }
+    ]
+  },
+  "errorProperty": null
+}
+```
+
+#### Response Field
+- `data.totalCount`: 조회 결과 전체 건수
+- `data.items`: 정산 내역 목록
+  - `seriesTitle`: 시리즈 제목
+  - `contentTitle`: 작품 화 제목
+  - `price`: 표시 가격(캔)
+    - `소장`: `audioContent.price`
+    - `대여`: `ceil(audioContent.price * 0.7)`
+  - `orderType`: `대여` 또는 `소장`
+  - `salesCount`: 판매 건수
+  - `totalCan`: 합계 캔
+  - `totalPoint`: 합계 포인트
+
+### 3. 오리지널 시리즈 정산 내역 엑셀 다운로드
+
+#### URI
+- `GET /admin/calculate/original-series/settlement-details/excel`
+
+#### Request
+- Header
+  - 인증: 관리자 권한 필요 (`hasRole('ADMIN')`)
+- Query Parameter
+  - `start_date`: 시작일, 형식 `yyyy-MM-dd`, KST 기준
+  - `end_date`: 종료일, 형식 `yyyy-MM-dd`, KST 기준
+- Body
+  - 없음
+
+#### Request Example
+
+```text
+GET /admin/calculate/original-series/settlement-details/excel?start_date=2026-04-01&end_date=2026-04-30
+```
+
+#### Response
+- Content-Type: `application/vnd.openxmlformats-officedocument.spreadsheetml.sheet`
+- Header
+  - `Content-Disposition: attachment; filename*=UTF-8''original-series-settlement-details.xlsx`
+- Body
+  - `.xlsx` 바이너리 스트림
+
+#### Excel 구성
+- 오리지널 시리즈 소지 유저별로 시트 1개 생성
+- 시트명 형식: `{nickname}`
+- 각 시트의 헤더 열 순서
+  1. `시리즈 제목`
+  2. `콘텐츠 제목`
+  3. `가격(캔)`
+  4. `구분`
+  5. `판매 수`
+  6. `합계(캔)`
+  7. `합계(포인트)`
+- 해당 기간에 데이터가 없는 유저도 헤더만 있는 시트를 유지
+
+## 클라이언트 기능 구현용 프롬프트
+
+```text
+관리자 페이지에서 오리지널 시리즈 작품 화별 정산 내역을 조회하고 엑셀 다운로드하는 클라이언트 기능을 구현한다.
+
+필수 API 계약은 아래와 같다.
+
+1. 소지 유저 조회
+- GET /admin/calculate/original-series/owners
+- 응답은 ApiResponse<List<{ creatorId: number; nickname: string }>> 형태다.
+
+2. 정산 내역 조회
+- GET /admin/calculate/original-series/settlement-details
+- query: start_date(yyyy-MM-dd), end_date(yyyy-MM-dd), creator_id(number), page(number), size(number)
+- 응답은 ApiResponse<{ totalCount: number; items: Array<{ seriesTitle: string; contentTitle: string; price: number; orderType: string; salesCount: number; totalCan: number; totalPoint: number }> }> 형태다.
+
+3. 엑셀 다운로드
+- GET /admin/calculate/original-series/settlement-details/excel
+- query: start_date(yyyy-MM-dd), end_date(yyyy-MM-dd)
+- 응답은 xlsx 바이너리이며 파일명은 `original-series-settlement-details.xlsx` 이다.
+
+구현 요구사항:
+- 화면 진입 시 owners API를 먼저 호출해 멤버 선택 드롭다운 데이터를 로드한다.
+- 사용자가 start_date, end_date, creator_id를 선택한 뒤 정산 내역 조회 API를 호출한다.
+- 목록 테이블에는 시리즈 제목, 콘텐츠 제목, 가격, 구분, 판매 수, 합계(캔), 합계(포인트)를 그대로 표시한다.
+- 페이지네이션은 page/size 기반으로 처리하고 totalCount를 사용해 총 페이지 수를 계산한다.
+- 엑셀 다운로드 버튼은 현재 선택된 start_date/end_date만 사용해 excel API를 호출한다.
+- JSON 응답은 항상 ApiResponse 래퍼의 success/data/message/errorProperty를 기준으로 처리한다.
+- success가 false이면 message를 우선 노출한다.
+- 날짜는 문자열 `yyyy-MM-dd` 형식으로 서버에 전달한다.
+
+산출물 요구사항:
+- API 호출 함수
+- 타입 정의
+- 목록 조회 상태 관리
+- 엑셀 다운로드 처리
+- 에러 처리 로직
+
+임의로 API 계약을 바꾸지 말고, 위 URI/Request/Response를 그대로 사용한다.
+```
+
+## 검증 기록
+
+### 1차 구현
+- 무엇을: `/admin/calculate/original-series/owners`, `/admin/calculate/original-series/settlement-details`, `/admin/calculate/original-series/settlement-details/excel` 3개 API와 전용 QueryRepository/Service/Controller/DTO를 추가했다.
+- 왜: 관리자 페이지에서 오리지널 시리즈 소지 유저를 먼저 조회하고, 선택한 유저의 작품 화별 정산 내역을 기간 기준으로 확인하며, 전체 소지 유저별 시트로 엑셀 다운로드할 수 있어야 했기 때문이다.
+- 어떻게:
+  - `kr.co.vividnext.sodalive.admin.calculate.originalSeries` 패키지를 생성하고 `Series(isOriginal = true) -> SeriesContent -> AudioContent -> Order` 조인으로 정산 내역을 조회하도록 구현했다.
+  - 정산 내역은 `Content.id`, `Order.type` 기준으로 그룹화하고 결과에 시리즈 제목, 콘텐츠 제목, 가격, 구분, 판매 수, 합계 캔, 합계 포인트를 담도록 구성했다.
+  - 가격은 `audioContent.price`를 기준으로 계산하고, 대여는 응답 변환 시 `ceil(price * 0.7)`를 적용해 포인트 사용으로 `order.can`이 바뀐 주문도 동일한 표시 가격을 유지하도록 했다.
+  - 엑셀은 `SXSSFWorkbook(100)` 기반 스트리밍으로 생성하고, 오리지널 시리즈 소지 유저별로 시트를 만들며 데이터가 없으면 헤더만 기록하도록 했다.
+  - 테스트/검증 실행 결과:
+    - `lsp_diagnostics` (신규 Kotlin 파일 경로) → Kotlin LSP 미설정으로 진단 불가
+    - `./gradlew test --tests "*AdminOriginalSeriesCalculate*"` → 성공
+    - `./gradlew ktlintCheck` → 성공
+    - `./gradlew build` → 성공
+    - `./gradlew test --tests "*AdminOriginalSeriesCalculateServiceTest.shouldCreateOneSheetPerOwnerForExcel"` → 성공
+
+### 2차 문서화
+- 무엇을: 기존 작업 계획 문서에 오리지널 시리즈 정산 API 3종의 URI, Request, Response 상세 명세와 클라이언트 기능 구현용 프롬프트를 추가했다.
+- 왜: 클라이언트 기능 구현 시 서버 API 계약을 문서만 보고 그대로 사용할 수 있어야 하기 때문이다.
+- 어떻게:
+  - `AdminOriginalSeriesCalculateController`, 응답 DTO, `ApiResponse` 구조를 기준으로 문서에 JSON 예시와 필드 설명을 정리했다.
+  - 엑셀 다운로드 API는 바이너리 응답과 헤더 규격, 시트 구성 규칙을 함께 기록했다.
+  - 클라이언트 개발자가 그대로 복사해 사용할 수 있도록 API 호출 순서와 상태 처리 조건을 포함한 프롬프트를 추가했다.
+  - 실행 결과:
+    - 수정 문서 재확인(`read`) → 성공
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/calculate/originalSeries/AdminOriginalSeriesCalculateController.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/calculate/originalSeries/AdminOriginalSeriesCalculateController.kt
@@ -0,0 +1,65 @@
+package kr.co.vividnext.sodalive.admin.calculate.originalSeries
+
+import kr.co.vividnext.sodalive.common.ApiResponse
+import org.springframework.data.domain.Pageable
+import org.springframework.http.HttpHeaders
+import org.springframework.http.MediaType
+import org.springframework.http.ResponseEntity
+import org.springframework.security.access.prepost.PreAuthorize
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RequestParam
+import org.springframework.web.bind.annotation.RestController
+import org.springframework.web.servlet.mvc.method.annotation.StreamingResponseBody
+import java.net.URLEncoder
+import java.nio.charset.StandardCharsets
+
+@RestController
+@PreAuthorize("hasRole('ADMIN')")
+@RequestMapping("/admin/calculate")
+class AdminOriginalSeriesCalculateController(
+    private val service: AdminOriginalSeriesCalculateService
+) {
+    @GetMapping("/original-series/owners")
+    fun getOriginalSeriesOwners() = ApiResponse.ok(service.getOriginalSeriesOwners())
+
+    @GetMapping("/original-series/settlement-details")
+    fun getSettlementDetails(
+        @RequestParam("start_date") startDateStr: String,
+        @RequestParam("end_date") endDateStr: String,
+        @RequestParam("creator_id") creatorId: Long,
+        pageable: Pageable
+    ) = ApiResponse.ok(
+        service.getSettlementDetails(
+            startDateStr = startDateStr,
+            endDateStr = endDateStr,
+            creatorId = creatorId,
+            offset = pageable.offset,
+            limit = pageable.pageSize.toLong()
+        )
+    )
+
+    @GetMapping("/original-series/settlement-details/excel")
+    fun downloadSettlementDetailsExcel(
+        @RequestParam("start_date") startDateStr: String,
+        @RequestParam("end_date") endDateStr: String
+    ): ResponseEntity<StreamingResponseBody> = createExcelResponse(
+        fileName = "original-series-settlement-details.xlsx",
+        response = service.downloadSettlementDetailsExcel(startDateStr, endDateStr)
+    )
+
+    private fun createExcelResponse(
+        fileName: String,
+        response: StreamingResponseBody
+    ): ResponseEntity<StreamingResponseBody> {
+        val encodedFileName = URLEncoder.encode(fileName, StandardCharsets.UTF_8.toString()).replace("+", "%20")
+        val headers = HttpHeaders().apply {
+            add(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename*=UTF-8''$encodedFileName")
+        }
+
+        return ResponseEntity.ok()
+            .headers(headers)
+            .contentType(MediaType.parseMediaType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"))
+            .body(response)
+    }
+}
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/calculate/originalSeries/AdminOriginalSeriesCalculateQueryRepository.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/calculate/originalSeries/AdminOriginalSeriesCalculateQueryRepository.kt
@@ -0,0 +1,114 @@
+package kr.co.vividnext.sodalive.admin.calculate.originalSeries
+
+import com.querydsl.core.types.dsl.BooleanExpression
+import com.querydsl.jpa.impl.JPAQueryFactory
+import kr.co.vividnext.sodalive.content.QAudioContent.audioContent
+import kr.co.vividnext.sodalive.content.order.QOrder.order
+import kr.co.vividnext.sodalive.creator.admin.content.series.QSeries.series
+import kr.co.vividnext.sodalive.creator.admin.content.series.QSeriesContent.seriesContent
+import kr.co.vividnext.sodalive.member.QMember.member
+import org.springframework.stereotype.Repository
+import java.time.LocalDateTime
+
+@Repository
+class AdminOriginalSeriesCalculateQueryRepository(
+    private val queryFactory: JPAQueryFactory
+) {
+    fun getOriginalSeriesOwners(): List<GetAdminOriginalSeriesOwnerResponse> {
+        return queryFactory
+            .select(
+                QGetAdminOriginalSeriesOwnerResponse(
+                    member.id,
+                    member.nickname
+                )
+            )
+            .from(series)
+            .innerJoin(series.member, member)
+            .where(
+                series.isOriginal.isTrue
+                    .and(series.isActive.isTrue)
+                    .and(member.isActive.isTrue)
+            )
+            .groupBy(member.id, member.nickname)
+            .orderBy(member.id.asc())
+            .fetch()
+    }
+
+    fun getSettlementDetailTotalCount(
+        startDate: LocalDateTime,
+        endDate: LocalDateTime,
+        creatorId: Long
+    ): Int {
+        return queryFactory
+            .select(audioContent.id)
+            .from(order)
+            .innerJoin(order.audioContent, audioContent)
+            .innerJoin(seriesContent).on(seriesContent.content.id.eq(audioContent.id))
+            .innerJoin(seriesContent.series, series)
+            .innerJoin(series.member, member)
+            .where(baseWhereCondition(startDate, endDate, creatorId))
+            .groupBy(
+                series.id,
+                series.title,
+                audioContent.id,
+                audioContent.title,
+                order.type,
+                audioContent.price
+            )
+            .fetch()
+            .size
+    }
+
+    fun getSettlementDetails(
+        startDate: LocalDateTime,
+        endDate: LocalDateTime,
+        creatorId: Long,
+        offset: Long,
+        limit: Long
+    ): List<GetAdminOriginalSeriesSettlementDetailQueryData> {
+        return queryFactory
+            .select(
+                QGetAdminOriginalSeriesSettlementDetailQueryData(
+                    series.title,
+                    audioContent.title,
+                    audioContent.price,
+                    order.type,
+                    order.id.count(),
+                    order.can.sum().coalesce(0),
+                    order.point.sum().coalesce(0)
+                )
+            )
+            .from(order)
+            .innerJoin(order.audioContent, audioContent)
+            .innerJoin(seriesContent).on(seriesContent.content.id.eq(audioContent.id))
+            .innerJoin(seriesContent.series, series)
+            .innerJoin(series.member, member)
+            .where(baseWhereCondition(startDate, endDate, creatorId))
+            .groupBy(
+                series.id,
+                series.title,
+                audioContent.id,
+                audioContent.title,
+                order.type,
+                audioContent.price
+            )
+            .orderBy(series.id.asc(), audioContent.id.asc(), order.type.asc())
+            .offset(offset)
+            .limit(limit)
+            .fetch()
+    }
+
+    private fun baseWhereCondition(
+        startDate: LocalDateTime,
+        endDate: LocalDateTime,
+        creatorId: Long
+    ): BooleanExpression {
+        return series.isOriginal.isTrue
+            .and(series.isActive.isTrue)
+            .and(member.isActive.isTrue)
+            .and(member.id.eq(creatorId))
+            .and(order.isActive.isTrue)
+            .and(order.createdAt.goe(startDate))
+            .and(order.createdAt.loe(endDate))
+    }
+}
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/calculate/originalSeries/AdminOriginalSeriesCalculateService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/calculate/originalSeries/AdminOriginalSeriesCalculateService.kt
@@ -0,0 +1,114 @@
+package kr.co.vividnext.sodalive.admin.calculate.originalSeries
+
+import kr.co.vividnext.sodalive.extensions.convertLocalDateTime
+import org.apache.poi.ss.usermodel.Sheet
+import org.apache.poi.ss.util.WorkbookUtil
+import org.apache.poi.xssf.streaming.SXSSFWorkbook
+import org.springframework.stereotype.Service
+import org.springframework.transaction.annotation.Transactional
+import org.springframework.web.servlet.mvc.method.annotation.StreamingResponseBody
+import java.time.LocalDateTime
+
+@Service
+class AdminOriginalSeriesCalculateService(
+    private val repository: AdminOriginalSeriesCalculateQueryRepository
+) {
+    @Transactional(readOnly = true)
+    fun getOriginalSeriesOwners(): List<GetAdminOriginalSeriesOwnerResponse> {
+        return repository.getOriginalSeriesOwners()
+    }
+
+    @Transactional(readOnly = true)
+    fun getSettlementDetails(
+        startDateStr: String,
+        endDateStr: String,
+        creatorId: Long,
+        offset: Long,
+        limit: Long
+    ): GetAdminOriginalSeriesSettlementDetailListResponse {
+        val (startDate, endDate) = toDateRange(startDateStr, endDateStr)
+        val totalCount = repository.getSettlementDetailTotalCount(startDate, endDate, creatorId)
+        val items = repository
+            .getSettlementDetails(startDate, endDate, creatorId, offset, limit)
+            .map { it.toResponse() }
+
+        return GetAdminOriginalSeriesSettlementDetailListResponse(totalCount, items)
+    }
+
+    @Transactional(readOnly = true)
+    fun downloadSettlementDetailsExcel(startDateStr: String, endDateStr: String): StreamingResponseBody {
+        val (startDate, endDate) = toDateRange(startDateStr, endDateStr)
+        val owners = repository.getOriginalSeriesOwners()
+
+        return StreamingResponseBody { outputStream ->
+            val workbook = SXSSFWorkbook(100)
+            try {
+                if (owners.isNotEmpty()) {
+                    owners.forEach { owner ->
+                        val sheet = workbook.createSheet(toSheetName(owner))
+                        writeHeaders(sheet)
+
+                        val totalCount = repository.getSettlementDetailTotalCount(startDate, endDate, owner.creatorId)
+                        val items = if (totalCount == 0) {
+                            emptyList()
+                        } else {
+                            repository.getSettlementDetails(startDate, endDate, owner.creatorId, 0L, totalCount.toLong())
+                                .map { it.toResponse() }
+                        }
+
+                        writeRows(sheet, items)
+                    }
+                }
+
+                workbook.write(outputStream)
+                outputStream.flush()
+            } finally {
+                workbook.dispose()
+                workbook.close()
+            }
+        }
+    }
+
+    private fun writeHeaders(sheet: Sheet) {
+        val headerRow = sheet.createRow(0)
+        EXCEL_HEADERS.forEachIndexed { index, value ->
+            headerRow.createCell(index).setCellValue(value)
+        }
+    }
+
+    private fun writeRows(sheet: Sheet, items: List<GetAdminOriginalSeriesSettlementDetailResponse>) {
+        items.forEachIndexed { index, item ->
+            val row = sheet.createRow(index + 1)
+            row.createCell(0).setCellValue(item.seriesTitle)
+            row.createCell(1).setCellValue(item.contentTitle)
+            row.createCell(2).setCellValue(item.price.toDouble())
+            row.createCell(3).setCellValue(item.orderType)
+            row.createCell(4).setCellValue(item.salesCount.toDouble())
+            row.createCell(5).setCellValue(item.totalCan.toDouble())
+            row.createCell(6).setCellValue(item.totalPoint.toDouble())
+        }
+    }
+
+    private fun toSheetName(owner: GetAdminOriginalSeriesOwnerResponse): String {
+        return WorkbookUtil.createSafeSheetName(owner.nickname)
+    }
+
+    private fun toDateRange(startDateStr: String, endDateStr: String): Pair<LocalDateTime, LocalDateTime> {
+        val startDate = startDateStr.convertLocalDateTime()
+        val endDate = endDateStr.convertLocalDateTime(hour = 23, minute = 59, second = 59)
+
+        return startDate to endDate
+    }
+
+    companion object {
+        private val EXCEL_HEADERS = listOf(
+            "시리즈 제목",
+            "콘텐츠 제목",
+            "가격(캔)",
+            "구분",
+            "판매 수",
+            "합계(캔)",
+            "합계(포인트)"
+        )
+    }
+}
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/calculate/originalSeries/GetAdminOriginalSeriesOwnerResponse.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/calculate/originalSeries/GetAdminOriginalSeriesOwnerResponse.kt
@@ -0,0 +1,9 @@
+package kr.co.vividnext.sodalive.admin.calculate.originalSeries
+
+import com.fasterxml.jackson.annotation.JsonProperty
+import com.querydsl.core.annotations.QueryProjection
+
+data class GetAdminOriginalSeriesOwnerResponse @QueryProjection constructor(
+    @JsonProperty("creatorId") val creatorId: Long,
+    @JsonProperty("nickname") val nickname: String
+)
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/calculate/originalSeries/GetAdminOriginalSeriesSettlementDetailQueryData.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/calculate/originalSeries/GetAdminOriginalSeriesSettlementDetailQueryData.kt
@@ -0,0 +1,27 @@
+package kr.co.vividnext.sodalive.admin.calculate.originalSeries
+
+import com.querydsl.core.annotations.QueryProjection
+import kr.co.vividnext.sodalive.content.order.OrderType
+import kotlin.math.ceil
+
+data class GetAdminOriginalSeriesSettlementDetailQueryData @QueryProjection constructor(
+    val seriesTitle: String,
+    val contentTitle: String,
+    val basePrice: Int,
+    val orderType: OrderType,
+    val salesCount: Long,
+    val totalCan: Int?,
+    val totalPoint: Int?
+) {
+    fun toResponse(): GetAdminOriginalSeriesSettlementDetailResponse {
+        return GetAdminOriginalSeriesSettlementDetailResponse(
+            seriesTitle = seriesTitle,
+            contentTitle = contentTitle,
+            price = if (orderType == OrderType.RENTAL) ceil(basePrice * 0.7).toInt() else basePrice,
+            orderType = if (orderType == OrderType.RENTAL) "대여" else "소장",
+            salesCount = salesCount.toInt(),
+            totalCan = totalCan ?: 0,
+            totalPoint = totalPoint ?: 0
+        )
+    }
+}
--- a/src/main/kotlin/kr/co/vividnext/sodalive/admin/calculate/originalSeries/GetAdminOriginalSeriesSettlementDetailResponse.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/admin/calculate/originalSeries/GetAdminOriginalSeriesSettlementDetailResponse.kt
@@ -0,0 +1,18 @@
+package kr.co.vividnext.sodalive.admin.calculate.originalSeries
+
+import com.fasterxml.jackson.annotation.JsonProperty
+
+data class GetAdminOriginalSeriesSettlementDetailResponse(
+    @JsonProperty("seriesTitle") val seriesTitle: String,
+    @JsonProperty("contentTitle") val contentTitle: String,
+    @JsonProperty("price") val price: Int,
+    @JsonProperty("orderType") val orderType: String,
+    @JsonProperty("salesCount") val salesCount: Int,
+    @JsonProperty("totalCan") val totalCan: Int,
+    @JsonProperty("totalPoint") val totalPoint: Int
+)
+
+data class GetAdminOriginalSeriesSettlementDetailListResponse(
+    @JsonProperty("totalCount") val totalCount: Int,
+    @JsonProperty("items") val items: List<GetAdminOriginalSeriesSettlementDetailResponse>
+)
--- a/src/main/kotlin/kr/co/vividnext/sodalive/live/room/LiveRoomService.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/live/room/LiveRoomService.kt
@@ -1076,6 +1076,7 @@ class LiveRoomService(
            donationRankingTop3UserIds = donationRankingTop3UserIds,
            menuPan = menuPan?.menu ?: "",
            creatorLanguageCode = creatorLanguageCode,
+            isFreeRoom = room.price == 0,
            isPrivateRoom = room.type == LiveRoomType.PRIVATE,
            password = room.password,
            isActiveRoulette = isActiveRoulette,
--- a/src/main/kotlin/kr/co/vividnext/sodalive/live/room/info/GetRoomInfoResponse.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/live/room/info/GetRoomInfoResponse.kt
@@ -23,6 +23,7 @@ data class GetRoomInfoResponse(
    val donationRankingTop3UserIds: List<Long>,
    val menuPan: String,
    val creatorLanguageCode: String?,
+    val isFreeRoom: Boolean,
    val isPrivateRoom: Boolean = false,
    val password: String? = null,
    val isActiveRoulette: Boolean = false,
--- a/src/test/kotlin/kr/co/vividnext/sodalive/admin/calculate/originalSeries/AdminOriginalSeriesCalculateControllerTest.kt
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/admin/calculate/originalSeries/AdminOriginalSeriesCalculateControllerTest.kt
@@ -0,0 +1,150 @@
+package kr.co.vividnext.sodalive.admin.calculate.originalSeries
+
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertNotNull
+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.PageRequest
+import org.springframework.http.HttpHeaders
+import org.springframework.web.servlet.mvc.method.annotation.StreamingResponseBody
+
+class AdminOriginalSeriesCalculateControllerTest {
+    private lateinit var service: AdminOriginalSeriesCalculateService
+    private lateinit var controller: AdminOriginalSeriesCalculateController
+
+    @BeforeEach
+    fun setup() {
+        service = Mockito.mock(AdminOriginalSeriesCalculateService::class.java)
+        controller = AdminOriginalSeriesCalculateController(service)
+    }
+
+    @Test
+    @DisplayName("관리자 컨트롤러는 오리지널 시리즈 소지 유저 목록을 반환한다")
+    fun shouldReturnOriginalSeriesOwners() {
+        val owners = listOf(GetAdminOriginalSeriesOwnerResponse(creatorId = 1L, nickname = "owner-a"))
+        Mockito.`when`(service.getOriginalSeriesOwners()).thenReturn(owners)
+
+        val response = controller.getOriginalSeriesOwners()
+
+        assertEquals(true, response.success)
+        assertEquals(1, response.data!!.size)
+        assertEquals(1L, response.data!![0].creatorId)
+        assertEquals("owner-a", response.data!![0].nickname)
+        Mockito.verify(service).getOriginalSeriesOwners()
+    }
+
+    @Test
+    @DisplayName("관리자 컨트롤러는 정산 내역 조회 파라미터를 서비스로 전달한다")
+    fun shouldForwardSettlementDetailParamsToService() {
+        val detailResponse = GetAdminOriginalSeriesSettlementDetailListResponse(
+            totalCount = 1,
+            items = listOf(
+                GetAdminOriginalSeriesSettlementDetailResponse(
+                    seriesTitle = "series",
+                    contentTitle = "episode",
+                    price = 70,
+                    orderType = "대여",
+                    salesCount = 2,
+                    totalCan = 140,
+                    totalPoint = 10
+                )
+            )
+        )
+        Mockito.`when`(
+            service.getSettlementDetails(
+                startDateStr = "2026-04-01",
+                endDateStr = "2026-04-30",
+                creatorId = 5L,
+                offset = 10L,
+                limit = 10L
+            )
+        ).thenReturn(detailResponse)
+
+        val response = controller.getSettlementDetails(
+            startDateStr = "2026-04-01",
+            endDateStr = "2026-04-30",
+            creatorId = 5L,
+            pageable = PageRequest.of(1, 10)
+        )
+
+        assertEquals(true, response.success)
+        assertEquals(1, response.data!!.totalCount)
+        assertEquals("series", response.data!!.items[0].seriesTitle)
+        Mockito.verify(service).getSettlementDetails(
+            startDateStr = "2026-04-01",
+            endDateStr = "2026-04-30",
+            creatorId = 5L,
+            offset = 10L,
+            limit = 10L
+        )
+    }
+
+    @Test
+    @DisplayName("정산 내역 조회 API는 snake_case 파라미터를 사용한다")
+    fun shouldUseSnakeCaseQueryParameterNames() {
+        val method = AdminOriginalSeriesCalculateController::class.java
+            .getDeclaredMethod(
+                "getSettlementDetails",
+                String::class.java,
+                String::class.java,
+                java.lang.Long.TYPE,
+                org.springframework.data.domain.Pageable::class.java
+            )
+        val parameters = method.parameters
+        val requestParamClass = org.springframework.web.bind.annotation.RequestParam::class.java
+
+        assertEquals("start_date", parameters[0].getAnnotation(requestParamClass).value)
+        assertEquals("end_date", parameters[1].getAnnotation(requestParamClass).value)
+        assertEquals("creator_id", parameters[2].getAnnotation(requestParamClass).value)
+    }
+
+    @Test
+    @DisplayName("정산 엑셀 다운로드 API는 snake_case 파라미터를 사용한다")
+    fun shouldUseSnakeCaseQueryParameterNamesForExcel() {
+        val method = AdminOriginalSeriesCalculateController::class.java
+            .getDeclaredMethod(
+                "downloadSettlementDetailsExcel",
+                String::class.java,
+                String::class.java
+            )
+        val parameters = method.parameters
+        val requestParamClass = org.springframework.web.bind.annotation.RequestParam::class.java
+
+        assertEquals("start_date", parameters[0].getAnnotation(requestParamClass).value)
+        assertEquals("end_date", parameters[1].getAnnotation(requestParamClass).value)
+    }
+
+    @Test
+    @DisplayName("관리자 컨트롤러는 오리지널 시리즈 정산 엑셀을 다운로드한다")
+    fun shouldDownloadOriginalSeriesSettlementExcel() {
+        Mockito.`when`(
+            service.downloadSettlementDetailsExcel(
+                startDateStr = "2026-04-01",
+                endDateStr = "2026-04-30"
+            )
+        ).thenReturn(StreamingResponseBody { outputStream -> outputStream.write(byteArrayOf(1, 2, 3)) })
+
+        val response = controller.downloadSettlementDetailsExcel(
+            startDateStr = "2026-04-01",
+            endDateStr = "2026-04-30"
+        )
+
+        assertEquals(200, response.statusCode.value())
+        val contentDispositionHeader = response.headers.getFirst(HttpHeaders.CONTENT_DISPOSITION)
+        assertNotNull(contentDispositionHeader)
+        assertEquals(true, contentDispositionHeader?.contains("attachment; filename*="))
+        assertEquals(
+            "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
+            response.headers.contentType.toString()
+        )
+        assertNotNull(response.body)
+        assertEquals(true, response.body is StreamingResponseBody)
+
+        Mockito.verify(service).downloadSettlementDetailsExcel(
+            startDateStr = "2026-04-01",
+            endDateStr = "2026-04-30"
+        )
+    }
+}
--- a/src/test/kotlin/kr/co/vividnext/sodalive/admin/calculate/originalSeries/AdminOriginalSeriesCalculateQueryRepositoryTest.kt
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/admin/calculate/originalSeries/AdminOriginalSeriesCalculateQueryRepositoryTest.kt
@@ -0,0 +1,264 @@
+package kr.co.vividnext.sodalive.admin.calculate.originalSeries
+
+import com.querydsl.jpa.impl.JPAQueryFactory
+import kr.co.vividnext.sodalive.admin.content.series.genre.SeriesGenre
+import kr.co.vividnext.sodalive.configs.QueryDslConfig
+import kr.co.vividnext.sodalive.content.AudioContent
+import kr.co.vividnext.sodalive.content.order.Order
+import kr.co.vividnext.sodalive.content.order.OrderType
+import kr.co.vividnext.sodalive.content.theme.AudioContentTheme
+import kr.co.vividnext.sodalive.creator.admin.content.series.Series
+import kr.co.vividnext.sodalive.creator.admin.content.series.SeriesContent
+import kr.co.vividnext.sodalive.member.Member
+import kr.co.vividnext.sodalive.member.MemberRole
+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
+import org.springframework.context.annotation.Import
+import java.time.LocalDateTime
+import javax.persistence.EntityManager
+
+@DataJpaTest
+@Import(QueryDslConfig::class)
+class AdminOriginalSeriesCalculateQueryRepositoryTest @Autowired constructor(
+    private val queryFactory: JPAQueryFactory,
+    private val entityManager: EntityManager
+) {
+    private lateinit var repository: AdminOriginalSeriesCalculateQueryRepository
+
+    @BeforeEach
+    fun setup() {
+        repository = AdminOriginalSeriesCalculateQueryRepository(queryFactory)
+    }
+
+    @Test
+    @DisplayName("오리지널 시리즈 소지 유저 조회는 중복 없이 오리지널 시리즈 보유자만 반환한다")
+    fun shouldGetDistinctOwnersOfOriginalSeries() {
+        val genre = saveSeriesGenre()
+        val ownerA = saveMember("owner-a", MemberRole.CREATOR)
+        val ownerB = saveMember("owner-b", MemberRole.CREATOR)
+        val inactiveOwner = saveMember("owner-c", MemberRole.CREATOR, isActive = false)
+
+        saveSeries("series-a1", ownerA, genre, isOriginal = true)
+        saveSeries("series-a2", ownerA, genre, isOriginal = true)
+        saveSeries("series-b1", ownerB, genre, isOriginal = true)
+        saveSeries("series-c1", inactiveOwner, genre, isOriginal = true)
+        saveSeries("series-non-original", ownerB, genre, isOriginal = false)
+
+        entityManager.flush()
+        entityManager.clear()
+
+        val result = repository.getOriginalSeriesOwners()
+
+        assertEquals(2, result.size)
+        assertEquals(ownerA.id, result[0].creatorId)
+        assertEquals(ownerB.id, result[1].creatorId)
+    }
+
+    @Test
+    @DisplayName("오리지널 시리즈 정산 내역 조회는 콘텐츠와 주문 타입 기준으로 그룹화한다")
+    fun shouldAggregateSettlementDetailsByContentAndOrderType() {
+        val genre = saveSeriesGenre()
+        val theme = saveTheme()
+        val owner = saveMember("owner-a", MemberRole.CREATOR)
+        val otherOwner = saveMember("owner-b", MemberRole.CREATOR)
+        val buyerA = saveMember("buyer-a", MemberRole.USER)
+        val buyerB = saveMember("buyer-b", MemberRole.USER)
+        val otherBuyer = saveMember("buyer-c", MemberRole.USER)
+
+        val originalSeries = saveSeries("오리지널 시리즈", owner, genre, isOriginal = true)
+        val otherSeries = saveSeries("다른 시리즈", otherOwner, genre, isOriginal = true)
+        val nonOriginalSeries = saveSeries("비오리지널 시리즈", owner, genre, isOriginal = false)
+
+        val episode = saveContent("1화", 100, owner, theme)
+        val otherEpisode = saveContent("2화", 120, otherOwner, theme)
+        val excludedEpisode = saveContent("3화", 150, owner, theme)
+
+        saveSeriesContent(originalSeries, episode)
+        saveSeriesContent(otherSeries, otherEpisode)
+        saveSeriesContent(nonOriginalSeries, excludedEpisode)
+
+        val keepOrder1 = saveOrder(
+            OrderType.KEEP,
+            episode,
+            buyerA,
+            owner,
+            point = 20,
+            createdAt = LocalDateTime.of(2026, 4, 10, 10, 0, 0)
+        )
+        val keepOrder2 = saveOrder(
+            OrderType.KEEP,
+            episode,
+            buyerB,
+            owner,
+            point = 5,
+            createdAt = LocalDateTime.of(2026, 4, 11, 10, 0, 0)
+        )
+        val rentalOrder = saveOrder(
+            OrderType.RENTAL,
+            episode,
+            buyerA,
+            owner,
+            point = 0,
+            createdAt = LocalDateTime.of(2026, 4, 12, 10, 0, 0)
+        )
+        val discountedRentalOrder = saveOrder(
+            OrderType.RENTAL,
+            episode,
+            buyerB,
+            owner,
+            point = 100,
+            createdAt = LocalDateTime.of(2026, 4, 15, 10, 0, 0),
+            canOverride = 60
+        )
+
+        saveOrder(
+            OrderType.RENTAL,
+            episode,
+            buyerA,
+            owner,
+            point = 0,
+            createdAt = LocalDateTime.of(2026, 5, 1, 0, 0, 0)
+        )
+        saveOrder(
+            OrderType.KEEP,
+            otherEpisode,
+            otherBuyer,
+            otherOwner,
+            point = 0,
+            createdAt = LocalDateTime.of(2026, 4, 13, 10, 0, 0)
+        )
+        saveOrder(
+            OrderType.KEEP,
+            excludedEpisode,
+            buyerA,
+            owner,
+            point = 0,
+            createdAt = LocalDateTime.of(2026, 4, 14, 10, 0, 0)
+        )
+
+        entityManager.flush()
+        entityManager.clear()
+
+        val startDate = LocalDateTime.of(2026, 4, 1, 0, 0, 0)
+        val endDate = LocalDateTime.of(2026, 4, 30, 23, 59, 59)
+
+        val totalCount = repository.getSettlementDetailTotalCount(startDate, endDate, owner.id!!)
+        val result = repository.getSettlementDetails(startDate, endDate, owner.id!!, 0L, 20L)
+
+        assertEquals(2, totalCount)
+        assertEquals(2, result.size)
+
+        val keepRow = result.first { it.orderType == OrderType.KEEP }
+        assertEquals("오리지널 시리즈", keepRow.seriesTitle)
+        assertEquals("1화", keepRow.contentTitle)
+        assertEquals(100, keepRow.basePrice)
+        assertEquals(2L, keepRow.salesCount)
+        assertEquals(200, keepRow.totalCan)
+        assertEquals(25, keepRow.totalPoint)
+
+        val rentalRow = result.first { it.orderType == OrderType.RENTAL }
+        assertEquals(100, rentalRow.basePrice)
+        assertEquals(2L, rentalRow.salesCount)
+        assertEquals(130, rentalRow.totalCan)
+        assertEquals(100, rentalRow.totalPoint)
+        assertEquals(70, rentalRow.toResponse().price)
+
+        assertEquals(100, keepOrder1.can)
+        assertEquals(100, keepOrder2.can)
+        assertEquals(70, rentalOrder.can)
+        assertEquals(60, discountedRentalOrder.can)
+    }
+
+    private fun saveMember(nickname: String, role: MemberRole, isActive: Boolean = true): Member {
+        val member = Member(
+            email = "$nickname@test.com",
+            password = "password",
+            nickname = nickname,
+            role = role,
+            isActive = isActive
+        )
+        entityManager.persist(member)
+        return member
+    }
+
+    private fun saveSeriesGenre(): SeriesGenre {
+        val genre = SeriesGenre(genre = "genre")
+        entityManager.persist(genre)
+        return genre
+    }
+
+    private fun saveTheme(): AudioContentTheme {
+        val theme = AudioContentTheme(theme = "theme", image = "theme.png")
+        entityManager.persist(theme)
+        return theme
+    }
+
+    private fun saveSeries(title: String, owner: Member, genre: SeriesGenre, isOriginal: Boolean): Series {
+        val series = Series(
+            title = title,
+            introduction = "introduction",
+            languageCode = "ko",
+            isOriginal = isOriginal
+        )
+        series.member = owner
+        series.genre = genre
+        entityManager.persist(series)
+        return series
+    }
+
+    private fun saveContent(title: String, price: Int, creator: Member, theme: AudioContentTheme): AudioContent {
+        val content = AudioContent(
+            title = title,
+            detail = "detail",
+            languageCode = "ko",
+            price = price
+        )
+        content.theme = theme
+        content.member = creator
+        content.isActive = true
+        entityManager.persist(content)
+        return content
+    }
+
+    private fun saveSeriesContent(series: Series, content: AudioContent): SeriesContent {
+        val seriesContent = SeriesContent()
+        seriesContent.series = series
+        seriesContent.content = content
+        entityManager.persist(seriesContent)
+        return seriesContent
+    }
+
+    private fun saveOrder(
+        type: OrderType,
+        content: AudioContent,
+        buyer: Member,
+        creator: Member,
+        point: Int,
+        createdAt: LocalDateTime,
+        canOverride: Int? = null
+    ): Order {
+        val order = Order(type = type)
+        order.member = buyer
+        order.creator = creator
+        order.audioContent = content
+        order.point = point
+        entityManager.persist(order)
+        entityManager.flush()
+        val paidCan = canOverride ?: order.can
+        entityManager.createQuery(
+            "update Order o set o.createdAt = :createdAt, o.can = :can, o.point = :point where o.id = :id"
+        )
+            .setParameter("createdAt", createdAt)
+            .setParameter("can", paidCan)
+            .setParameter("point", point)
+            .setParameter("id", order.id)
+            .executeUpdate()
+        entityManager.clear()
+
+        return entityManager.find(Order::class.java, order.id)
+    }
+}
--- a/src/test/kotlin/kr/co/vividnext/sodalive/admin/calculate/originalSeries/AdminOriginalSeriesCalculateServiceTest.kt
+++ b/src/test/kotlin/kr/co/vividnext/sodalive/admin/calculate/originalSeries/AdminOriginalSeriesCalculateServiceTest.kt
@@ -0,0 +1,186 @@
+package kr.co.vividnext.sodalive.admin.calculate.originalSeries
+
+import kr.co.vividnext.sodalive.content.order.OrderType
+import kr.co.vividnext.sodalive.extensions.convertLocalDateTime
+import org.apache.poi.xssf.usermodel.XSSFWorkbook
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertTrue
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Test
+import org.mockito.Mockito
+import java.io.ByteArrayInputStream
+import java.io.ByteArrayOutputStream
+
+class AdminOriginalSeriesCalculateServiceTest {
+    private lateinit var repository: AdminOriginalSeriesCalculateQueryRepository
+    private lateinit var service: AdminOriginalSeriesCalculateService
+
+    @BeforeEach
+    fun setup() {
+        repository = Mockito.mock(AdminOriginalSeriesCalculateQueryRepository::class.java)
+        service = AdminOriginalSeriesCalculateService(repository)
+    }
+
+    @Test
+    @DisplayName("오리지널 시리즈 소지 유저 목록 조회는 리포지토리 결과를 반환한다")
+    fun shouldReturnOriginalSeriesOwners() {
+        val owners = listOf(GetAdminOriginalSeriesOwnerResponse(creatorId = 1L, nickname = "owner-a"))
+        Mockito.`when`(repository.getOriginalSeriesOwners()).thenReturn(owners)
+
+        val result = service.getOriginalSeriesOwners()
+
+        assertEquals(1, result.size)
+        assertEquals(1L, result[0].creatorId)
+        Mockito.verify(repository).getOriginalSeriesOwners()
+    }
+
+    @Test
+    @DisplayName("정산 내역 조회는 날짜 범위를 UTC로 변환하고 페이지 응답을 반환한다")
+    fun shouldConvertDateRangeAndReturnSettlementDetails() {
+        val queryData = GetAdminOriginalSeriesSettlementDetailQueryData(
+            seriesTitle = "오리지널 시리즈",
+            contentTitle = "1화",
+            basePrice = 100,
+            orderType = OrderType.RENTAL,
+            salesCount = 2L,
+            totalCan = 140,
+            totalPoint = 10
+        )
+        Mockito.`when`(
+            repository.getSettlementDetailTotalCount(
+                "2026-04-01".convertLocalDateTime(),
+                "2026-04-30".convertLocalDateTime(hour = 23, minute = 59, second = 59),
+                9L
+            )
+        ).thenReturn(1)
+        Mockito.`when`(
+            repository.getSettlementDetails(
+                "2026-04-01".convertLocalDateTime(),
+                "2026-04-30".convertLocalDateTime(hour = 23, minute = 59, second = 59),
+                9L,
+                0L,
+                20L
+            )
+        ).thenReturn(listOf(queryData))
+
+        val result = service.getSettlementDetails(
+            startDateStr = "2026-04-01",
+            endDateStr = "2026-04-30",
+            creatorId = 9L,
+            offset = 0L,
+            limit = 20L
+        )
+
+        assertEquals(1, result.totalCount)
+        assertEquals(1, result.items.size)
+        assertEquals(70, result.items[0].price)
+        assertEquals("대여", result.items[0].orderType)
+        assertEquals(140, result.items[0].totalCan)
+
+        Mockito.verify(repository).getSettlementDetailTotalCount(
+            "2026-04-01".convertLocalDateTime(),
+            "2026-04-30".convertLocalDateTime(hour = 23, minute = 59, second = 59),
+            9L
+        )
+        Mockito.verify(repository).getSettlementDetails(
+            "2026-04-01".convertLocalDateTime(),
+            "2026-04-30".convertLocalDateTime(hour = 23, minute = 59, second = 59),
+            9L,
+            0L,
+            20L
+        )
+    }
+
+    @Test
+    @DisplayName("정산 엑셀 다운로드는 소지 유저별 시트를 생성한다")
+    fun shouldCreateOneSheetPerOwnerForExcel() {
+        val owners = listOf(
+            GetAdminOriginalSeriesOwnerResponse(creatorId = 1L, nickname = "owner-a"),
+            GetAdminOriginalSeriesOwnerResponse(creatorId = 2L, nickname = "owner-b")
+        )
+        Mockito.`when`(repository.getOriginalSeriesOwners()).thenReturn(owners)
+        Mockito.`when`(
+            repository.getSettlementDetailTotalCount(
+                "2026-04-01".convertLocalDateTime(),
+                "2026-04-30".convertLocalDateTime(hour = 23, minute = 59, second = 59),
+                1L
+            )
+        ).thenReturn(1)
+        Mockito.`when`(
+            repository.getSettlementDetailTotalCount(
+                "2026-04-01".convertLocalDateTime(),
+                "2026-04-30".convertLocalDateTime(hour = 23, minute = 59, second = 59),
+                2L
+            )
+        ).thenReturn(0)
+        Mockito.`when`(
+            repository.getSettlementDetails(
+                "2026-04-01".convertLocalDateTime(),
+                "2026-04-30".convertLocalDateTime(hour = 23, minute = 59, second = 59),
+                1L,
+                0L,
+                1L
+            )
+        ).thenReturn(
+            listOf(
+                GetAdminOriginalSeriesSettlementDetailQueryData(
+                    seriesTitle = "오리지널 시리즈",
+                    contentTitle = "1화",
+                    basePrice = 100,
+                    orderType = OrderType.KEEP,
+                    salesCount = 2L,
+                    totalCan = 200,
+                    totalPoint = 30
+                )
+            )
+        )
+
+        val response = service.downloadSettlementDetailsExcel(
+            startDateStr = "2026-04-01",
+            endDateStr = "2026-04-30"
+        )
+        val outputStream = ByteArrayOutputStream()
+        response.writeTo(outputStream)
+
+        assertTrue(outputStream.toByteArray().isNotEmpty())
+
+        XSSFWorkbook(ByteArrayInputStream(outputStream.toByteArray())).use { workbook ->
+            assertEquals(2, workbook.numberOfSheets)
+            assertEquals("owner-a", workbook.getSheetAt(0).sheetName)
+            assertEquals("owner-b", workbook.getSheetAt(1).sheetName)
+            assertEquals("시리즈 제목", workbook.getSheetAt(0).getRow(0).getCell(0).stringCellValue)
+            assertEquals("오리지널 시리즈", workbook.getSheetAt(0).getRow(1).getCell(0).stringCellValue)
+            assertEquals("시리즈 제목", workbook.getSheetAt(1).getRow(0).getCell(0).stringCellValue)
+            assertEquals(1, workbook.getSheetAt(1).physicalNumberOfRows)
+        }
+
+        Mockito.verify(repository).getOriginalSeriesOwners()
+        Mockito.verify(repository).getSettlementDetails(
+            "2026-04-01".convertLocalDateTime(),
+            "2026-04-30".convertLocalDateTime(hour = 23, minute = 59, second = 59),
+            1L,
+            0L,
+            1L
+        )
+    }
+
+    @Test
+    @DisplayName("소지 유저가 없으면 엑셀에 시트를 생성하지 않는다")
+    fun shouldCreateWorkbookWithoutSheetsWhenNoOwners() {
+        Mockito.`when`(repository.getOriginalSeriesOwners()).thenReturn(emptyList())
+
+        val response = service.downloadSettlementDetailsExcel(
+            startDateStr = "2026-04-01",
+            endDateStr = "2026-04-30"
+        )
+        val outputStream = ByteArrayOutputStream()
+        response.writeTo(outputStream)
+
+        assertTrue(outputStream.toByteArray().isNotEmpty())
+
+        XSSFWorkbook(ByteArrayInputStream(outputStream.toByteArray())).use { workbook ->
+            assertEquals(0, workbook.numberOfSheets)
+        }
+    }
+}