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 eb8cbfb..6efc678 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
@@ -7,8 +7,10 @@ import kr.co.vividnext.sodalive.chat.original.dto.OriginalWorkDetailResponse
 import kr.co.vividnext.sodalive.chat.original.dto.OriginalWorkListItemResponse
 import kr.co.vividnext.sodalive.chat.original.dto.OriginalWorkListResponse
 import kr.co.vividnext.sodalive.chat.original.service.OriginalWorkQueryService
+import kr.co.vividnext.sodalive.chat.original.translation.OriginalWorkTranslationRepository
 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.beans.factory.annotation.Value
 import org.springframework.security.core.annotation.AuthenticationPrincipal
@@ -30,6 +32,10 @@ class OriginalWorkController(
     private val queryService: OriginalWorkQueryService,
     private val characterImageRepository: CharacterImageRepository,
 
+    private val langContext: LangContext,
+
+    private val originalWorkTranslationRepository: OriginalWorkTranslationRepository,
+
     @Value("\${cloud.aws.cloud-front.host}")
     private val imageHost: String
 ) {
@@ -51,7 +57,57 @@ class OriginalWorkController(
         val includeAdult = member?.auth != null
         val pageRes = queryService.listForAppPage(includeAdult, page, size)
         val content = pageRes.content.map { OriginalWorkListItemResponse.from(it, imageHost) }
-        ApiResponse.ok(OriginalWorkListResponse(totalCount = pageRes.totalElements, content = content))
+
+        /**
+         * 원작 목록의 제목과 콘텐츠 타입을 현재 언어(locale)에 맞춰 일괄 번역한다.
+         *
+         * 처리 절차:
+         * - 입력된 원작들의 originalWorkId 집합을 만들고, 요청 언어 코드(langContext.lang.code)로
+         *   originalWorkTranslationRepository 번역 데이터를 한 번에 조회한다.
+         * - 각 항목에 대해 번역된 제목과 콘텐츠 타입이 존재하고 비어있지 않으면 title과 contentType을 번역 값으로 교체한다.
+         * - 번역이 없거나 공백이면 원본 항목을 그대로 반환한다.
+         *
+         * 성능:
+         * - N건의 항목을 1회의 조회로 해결하기 위해 IN 쿼리를 사용한다.
+         */
+        val translatedContent = run {
+            if (content.isEmpty()) {
+                content
+            } else {
+                val ids = content.map { it.id }.toSet()
+                val locale = langContext.lang.code
+                val translations = originalWorkTranslationRepository
+                    .findByOriginalWorkIdInAndLocale(ids, locale)
+                    .associateBy { it.originalWorkId }
+
+                content.map { item ->
+                    val payload = translations[item.id]?.renderedPayload
+                    if (payload != null) {
+                        val newTitle = payload.title.trim()
+                        val newContentType = payload.contentType.trim()
+                        val hasTitle = newTitle.isNotEmpty()
+                        val hasContentType = newContentType.isNotEmpty()
+                        if (hasTitle || hasContentType) {
+                            item.copy(
+                                title = if (hasTitle) newTitle else item.title,
+                                contentType = if (hasContentType) newContentType else item.contentType
+                            )
+                        } else {
+                            item
+                        }
+                    } else {
+                        item
+                    }
+                }
+            }
+        }
+
+        ApiResponse.ok(
+            OriginalWorkListResponse(
+                totalCount = pageRes.totalElements,
+                content = translatedContent
+            )
+        )
     }
 
     /**
diff --git a/src/main/kotlin/kr/co/vividnext/sodalive/chat/original/translation/OriginalWorkTranslationRepository.kt b/src/main/kotlin/kr/co/vividnext/sodalive/chat/original/translation/OriginalWorkTranslationRepository.kt
index e63fbeb..0e88a4a 100644
--- a/src/main/kotlin/kr/co/vividnext/sodalive/chat/original/translation/OriginalWorkTranslationRepository.kt
+++ b/src/main/kotlin/kr/co/vividnext/sodalive/chat/original/translation/OriginalWorkTranslationRepository.kt
@@ -4,4 +4,6 @@ import org.springframework.data.jpa.repository.JpaRepository
 
 interface OriginalWorkTranslationRepository : JpaRepository<OriginalWorkTranslation, Long> {
     fun findByOriginalWorkIdAndLocale(originalWorkId: Long, locale: String): OriginalWorkTranslation?
+
+    fun findByOriginalWorkIdInAndLocale(originalWorkIds: Set<Long>, locale: String): List<OriginalWorkTranslation>
 }