src/main/kotlin/kr/co/vividnext/sodalive/api/home/GetHomeResponse.kt

@@ -5,7 +5,6 @@ import kr.co.vividnext.sodalive.chat.character.dto.Character
 import kr.co.vividnext.sodalive.content.AudioContentMainItem
 import kr.co.vividnext.sodalive.content.main.GetAudioContentRankingItem
 import kr.co.vividnext.sodalive.content.main.banner.GetAudioContentBannerResponse
-import kr.co.vividnext.sodalive.content.main.tab.GetContentCurationResponse
 import kr.co.vividnext.sodalive.content.series.GetSeriesListResponse
 import kr.co.vividnext.sodalive.event.GetEventResponse
 import kr.co.vividnext.sodalive.explorer.GetExplorerSectionCreatorResponse
@@ -27,6 +26,5 @@ data class GetHomeResponse(
     val recommendChannelList: List<RecommendChannelResponse>,
     val freeContentList: List<AudioContentMainItem>,
     val pointAvailableContentList: List<AudioContentMainItem>,
-    val recommendContentList: List<AudioContentMainItem>,
+    val recommendContentList: List<AudioContentMainItem>
-    val curationList: List<GetContentCurationResponse>
 )

src/main/kotlin/kr/co/vividnext/sodalive/api/home/HomeService.kt

@@ -1,20 +1,16 @@
 package kr.co.vividnext.sodalive.api.home
 
 import kr.co.vividnext.sodalive.audition.AuditionService
-import kr.co.vividnext.sodalive.chat.character.dto.Character
 import kr.co.vividnext.sodalive.chat.character.service.ChatCharacterService
-import kr.co.vividnext.sodalive.chat.character.translate.AiCharacterTranslationRepository
 import kr.co.vividnext.sodalive.content.AudioContentMainItem
 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.GetAudioContentRankingItem
 import kr.co.vividnext.sodalive.content.main.banner.AudioContentBannerService
-import kr.co.vividnext.sodalive.content.main.curation.AudioContentCurationService
 import kr.co.vividnext.sodalive.content.series.ContentSeriesService
 import kr.co.vividnext.sodalive.content.series.GetSeriesListResponse
-import kr.co.vividnext.sodalive.content.series.translation.SeriesTranslationRepository
 import kr.co.vividnext.sodalive.content.theme.AudioContentThemeService
-import kr.co.vividnext.sodalive.content.translation.ContentTranslationRepository
 import kr.co.vividnext.sodalive.creator.admin.content.series.SeriesPublishedDaysOfWeek
 import kr.co.vividnext.sodalive.event.GetEventResponse
 import kr.co.vividnext.sodalive.explorer.ExplorerQueryRepository
@@ -22,7 +18,6 @@ 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.member.Member
-import kr.co.vividnext.sodalive.member.MemberService
 import kr.co.vividnext.sodalive.query.recommend.RecommendChannelQueryService
 import kr.co.vividnext.sodalive.rank.ContentRankingSortType
 import kr.co.vividnext.sodalive.rank.RankingRepository
@@ -34,16 +29,15 @@ import java.time.DayOfWeek
 import java.time.LocalDateTime
 import java.time.ZoneId
 import java.time.temporal.TemporalAdjusters
+import kotlin.math.pow
 
 @Service
 class HomeService(
-    private val memberService: MemberService,
     private val liveRoomService: LiveRoomService,
     private val auditionService: AuditionService,
     private val seriesService: ContentSeriesService,
     private val contentService: AudioContentService,
     private val bannerService: AudioContentBannerService,
-    private val curationService: AudioContentCurationService,
     private val contentThemeService: AudioContentThemeService,
     private val recommendChannelService: RecommendChannelQueryService,
 
@@ -52,10 +46,6 @@ class HomeService(
     private val rankingRepository: RankingRepository,
     private val explorerQueryRepository: ExplorerQueryRepository,
 
-    private val contentTranslationRepository: ContentTranslationRepository,
-    private val aiCharacterTranslationRepository: AiCharacterTranslationRepository,
-    private val seriesTranslationRepository: SeriesTranslationRepository,
-
     private val langContext: LangContext,
 
     @Value("\${cloud.aws.cloud-front.host}")
@@ -64,8 +54,19 @@ class HomeService(
     companion object {
         private const val RECOMMEND_TARGET_SIZE = 30
         private const val RECOMMEND_MAX_ATTEMPTS = 3
+        private const val TIME_DECAY_HALF_LIFE_RANK = 30.0
     }
 
+    private data class RecommendBucket(
+        val offset: Long,
+        val limit: Long
+    )
+
+    private data class DecayCandidate(
+        val item: AudioContentMainItem,
+        val rank: Int
+    )
+
     fun fetchData(
         timezone: String,
         isAdultContentVisible: Boolean,
@@ -84,24 +85,19 @@ class HomeService(
             timezone = timezone
         )
 
-        val creatorRanking = rankingRepository
+        val creatorRankingMembers = rankingRepository.getCreatorRankings(memberId = memberId)
-            .getCreatorRankings()
+        val creatorRankingIds = creatorRankingMembers.mapNotNull { it.id }
-            .filter {
+        val followedCreatorIds = if (memberId != null) {
-                if (memberId != null) {
+            explorerQueryRepository.getFollowedCreatorIds(creatorRankingIds, memberId)
-                    !memberService.isBlocked(blockedMemberId = memberId, memberId = it.id!!)
         } else {
-                    true
+            emptySet()
-                }
-            }
-            .map {
-                val followerCount = explorerQueryRepository.getNotificationUserIds(it.id!!).size
-                val follow = if (memberId != null) {
-                    explorerQueryRepository.isFollow(it.id!!, memberId = memberId)
-                } else {
-                    false
         }
 
-                it.toExplorerSectionCreator(imageHost, follow, followerCount = followerCount)
+        val creatorRanking = creatorRankingMembers.map { creator ->
+            val creatorId = creator.id!!
+            val follow = memberId != null && followedCreatorIds.contains(creatorId)
+
+            creator.toExplorerSectionCreator(imageHost, follow)
         }
 
         val latestContentThemeList = contentThemeService.getActiveThemeOfContent(
@@ -111,19 +107,12 @@ class HomeService(
         )
 
         val latestContentList = contentService.getLatestContentByTheme(
+            memberId = memberId,
             theme = latestContentThemeList,
             contentType = contentType,
             isFree = false,
             isAdult = isAdult
-        ).filter {
+        )
-            if (memberId != null) {
-                !memberService.isBlocked(blockedMemberId = memberId, memberId = it.creatorId)
-            } else {
-                true
-            }
-        }
-
-        val translatedLatestContentList = getTranslatedContentList(contentList = latestContentList)
 
         val eventBannerList = GetEventResponse(
             totalCount = 0,
@@ -136,28 +125,23 @@ class HomeService(
             isAdult = isAdult
         )
 
-        // 오직 보이스온에서만
         val originalAudioDramaList = seriesService.getOriginalAudioDramaList(
             isAdult = isAdult,
-            contentType = contentType,
+            contentType = contentType
-            orderByRandom = true
         )
 
-        val translatedOriginalAudioDramaList = getTranslatedSeriesList(seriesList = originalAudioDramaList)
-
         val auditionList = auditionService.getInProgressAuditionList(isAdult = isAdult)
 
         // 요일별 시리즈
-        val dayOfWeekSeriesList = seriesService.getDayOfWeekSeriesList(
+        val translatedDayOfWeekSeriesList = seriesService.getDayOfWeekSeriesList(
             memberId = memberId,
             isAdult = isAdult,
             contentType = contentType,
             dayOfWeek = getDayOfWeekByTimezone(timezone)
         )
-        val translatedDayOfWeekSeriesList = getTranslatedSeriesList(seriesList = dayOfWeekSeriesList)
 
         // 인기 캐릭터 조회
-        val translatedPopularCharacters = getTranslatedAiCharacterList(aiCharacterList = characterService.getPopularCharacters())
+        val translatedPopularCharacters = characterService.getPopularCharacters(locale = langContext.lang.code)
 
         val currentDateTime = LocalDateTime.now()
         val startDate = currentDateTime
@@ -178,130 +162,61 @@ class HomeService(
             sort = ContentRankingSortType.REVENUE
         )
 
-        val contentRankingContentIds = contentRanking.map { it.contentId }
-        val translatedContentRanking = if (contentRankingContentIds.isNotEmpty()) {
-            val translations = contentTranslationRepository
-                .findByContentIdInAndLocale(contentIds = contentRankingContentIds, locale = langContext.lang.code)
-                .associateBy { it.contentId }
-
-            contentRanking.map { item ->
-                val translatedTitle = translations[item.contentId]?.renderedPayload?.title
-                if (translatedTitle.isNullOrBlank()) {
-                    item
-                } else {
-                    item.copy(title = translatedTitle)
-                }
-            }
-        } else {
-            contentRanking
-        }
-
         val recommendChannelList = recommendChannelService.getRecommendChannel(
             memberId = memberId,
             isAdult = isAdult,
             contentType = contentType
         )
 
-        /**
+        val freeContentList = getRandomizedContentList(
-         * recommendChannelList의 콘텐츠 번역 데이터 조회
+            memberId = memberId,
-         *
+            isAdult = isAdult,
-         * languageCode != null
+            contentType = contentType,
-         * contentTranslationRepository를 이용해 번역 콘텐츠를 조회한다. - contentId, locale
-         *
-         * 한 번에 조회하고 contentId를 매핑하여 recommendChannelList의 콘텐츠 title을 번역 데이터로 변경한다
-         */
-        val channelContentIds = recommendChannelList
-            .flatMap { it.contentList }
-            .map { it.contentId }
-            .distinct()
-
-        val translatedRecommendChannelList = if (channelContentIds.isNotEmpty()) {
-            val translations = contentTranslationRepository
-                .findByContentIdInAndLocale(contentIds = channelContentIds, locale = langContext.lang.code)
-                .associateBy { it.contentId }
-
-            recommendChannelList.map { channel ->
-                val translatedContentList = channel.contentList.map { item ->
-                    val translatedTitle = translations[item.contentId]?.renderedPayload?.title
-                    if (translatedTitle.isNullOrBlank()) {
-                        item
-                    } else {
-                        item.copy(title = translatedTitle)
-                    }
-                }
-
-                channel.copy(contentList = translatedContentList)
-            }
-        } else {
-            recommendChannelList
-        }
-
-        val freeContentList = contentService.getLatestContentByTheme(
             theme = contentThemeService.getActiveThemeOfContent(
                 isAdult = isAdult,
                 isFree = true,
                 contentType = contentType
             ),
-            contentType = contentType,
             isFree = true,
-            isAdult = isAdult,
+            isPointAvailableOnly = false
-            orderByRandom = true
+        )
-        ).filter {
-            if (memberId != null) {
-                !memberService.isBlocked(blockedMemberId = memberId, memberId = it.creatorId)
-            } else {
-                true
-            }
-        }
-
-        val translatedFreeContentList = getTranslatedContentList(contentList = freeContentList)
 
         // 포인트 사용가능 콘텐츠 리스트 - 랜덤으로 가져오기 (DB에서 isPointAvailable 조건 적용)
-        val pointAvailableContentList = contentService.getLatestContentByTheme(
+        val pointAvailableContentList = getRandomizedContentList(
+            memberId = memberId,
+            isAdult = isAdult,
+            contentType = contentType,
             theme = emptyList(),
-            contentType = contentType,
             isFree = false,
-            isAdult = isAdult,
-            orderByRandom = true,
             isPointAvailableOnly = true
-        ).filter {
-            if (memberId != null) {
-                !memberService.isBlocked(blockedMemberId = memberId, memberId = it.creatorId)
-            } else {
-                true
-            }
-        }
-
-        val translatedPointAvailableContentList = getTranslatedContentList(contentList = pointAvailableContentList)
-
-        val curationList = curationService.getContentCurationList(
-            tabId = 3L, // 기존에 사용하던 단편 탭의 큐레이션을 사용
-            isAdult = isAdult,
-            contentType = contentType,
-            memberId = memberId
         )
 
+        val excludeContentIds = (
+            latestContentList.map { it.contentId } +
+                contentRanking.map { it.contentId }
+            ).distinct()
+
         return GetHomeResponse(
             liveList = liveList,
             creatorRanking = creatorRanking,
             latestContentThemeList = latestContentThemeList,
-            latestContentList = translatedLatestContentList,
+            latestContentList = latestContentList,
             bannerList = bannerList,
             eventBannerList = eventBannerList,
-            originalAudioDramaList = translatedOriginalAudioDramaList,
+            originalAudioDramaList = originalAudioDramaList,
             auditionList = auditionList,
             dayOfWeekSeriesList = translatedDayOfWeekSeriesList,
             popularCharacters = translatedPopularCharacters,
-            contentRanking = translatedContentRanking,
+            contentRanking = contentRanking,
-            recommendChannelList = translatedRecommendChannelList,
+            recommendChannelList = recommendChannelList,
-            freeContentList = translatedFreeContentList,
+            freeContentList = freeContentList,
-            pointAvailableContentList = translatedPointAvailableContentList,
+            pointAvailableContentList = pointAvailableContentList,
             recommendContentList = getRecommendContentList(
                 isAdultContentVisible = isAdultContentVisible,
                 contentType = contentType,
-                member = member
+                member = member,
-            ),
+                excludeContentIds = excludeContentIds
-            curationList = curationList
+            )
         )
     }
 
@@ -325,20 +240,13 @@ class HomeService(
             listOf(theme)
         }
 
-        val contentList = contentService.getLatestContentByTheme(
+        return contentService.getLatestContentByTheme(
+            memberId = memberId,
             theme = themeList,
             contentType = contentType,
             isFree = false,
             isAdult = isAdult
-        ).filter {
+        )
-            if (memberId != null) {
-                !memberService.isBlocked(blockedMemberId = memberId, memberId = it.creatorId)
-            } else {
-                true
-            }
-        }
-
-        return getTranslatedContentList(contentList = contentList)
     }
 
     fun getDayOfWeekSeriesList(
@@ -350,14 +258,12 @@ class HomeService(
         val memberId = member?.id
         val isAdult = member?.auth != null && isAdultContentVisible
 
-        val dayOfWeekSeriesList = seriesService.getDayOfWeekSeriesList(
+        return seriesService.getDayOfWeekSeriesList(
             memberId = memberId,
             isAdult = isAdult,
             contentType = contentType,
             dayOfWeek = dayOfWeek
         )
-
-        return getTranslatedSeriesList(seriesList = dayOfWeekSeriesList)
     }
 
     fun getContentRankingBySort(
@@ -412,153 +318,155 @@ class HomeService(
         return dayToSeriesPublishedDaysOfWeek[zonedDateTime.dayOfWeek] ?: SeriesPublishedDaysOfWeek.RANDOM
     }
 
-    // 추천 콘텐츠 조회 로직은 변경 가능성을 고려하여 별도 메서드로 추출한다.
     fun getRecommendContentList(
         isAdultContentVisible: Boolean,
         contentType: ContentType,
-        member: Member?
+        member: Member?,
+        excludeContentIds: List<Long> = emptyList()
     ): List<AudioContentMainItem> {
         val memberId = member?.id
         val isAdult = member?.auth != null && isAdultContentVisible
 
-        // Set + List 조합으로 중복 제거 및 순서 보존, 각 시도마다 limit=60으로 조회
+        // 3개의 버킷(최근/중간/과거)에서 후보군을 조회한 뒤, 시간감쇠 점수 기반으로 샘플링한다.
-        val seen = HashSet<Long>(RECOMMEND_TARGET_SIZE * 2)
+        val buckets = listOf(
-        val result = ArrayList<AudioContentMainItem>(RECOMMEND_TARGET_SIZE)
+            RecommendBucket(offset = 0L, limit = 50L),
-        var attempt = 0
+            RecommendBucket(offset = 50L, limit = 100L),
-        while (attempt < RECOMMEND_MAX_ATTEMPTS && result.size < RECOMMEND_TARGET_SIZE) {
+            RecommendBucket(offset = 150L, limit = 150L)
-            attempt += 1
+        )
+
+        val result = mutableListOf<AudioContentMainItem>()
+        val seenIds = excludeContentIds.toMutableSet()
+
+        repeat(RECOMMEND_MAX_ATTEMPTS) {
+            if (result.size >= RECOMMEND_TARGET_SIZE) return@repeat
+
+            val remaining = RECOMMEND_TARGET_SIZE - result.size
+            val targetPerBucket = maxOf(1, (remaining + buckets.size - 1) / buckets.size)
+
+            for (bucket in buckets) {
+                if (result.size >= RECOMMEND_TARGET_SIZE) break
+
                 val batch = contentService.getLatestContentByTheme(
-                theme = emptyList(), // 특정 테마에 종속되지 않도록 전체에서 랜덤 조회
+                    memberId = memberId,
+                    theme = emptyList(),
                     contentType = contentType,
-                offset = 0,
+                    offset = bucket.offset,
-                limit = (RECOMMEND_TARGET_SIZE * RECOMMEND_MAX_ATTEMPTS).toLong(), // 60개 조회
+                    limit = bucket.limit,
+                    sortType = SortType.NEWEST,
                     isFree = false,
                     isAdult = isAdult,
-                orderByRandom = true
+                    orderByRandom = false,
-            ).filter {
+                    excludeContentIds = seenIds.toList()
-                if (memberId != null) {
+                )
-                    !memberService.isBlocked(blockedMemberId = memberId, memberId = it.creatorId)
-                } else {
-                    true
-                }
-            }
 
-            for (item in batch) {
+                val selected = pickByTimeDecay(
-                if (result.size >= RECOMMEND_TARGET_SIZE) break
+                    batch = batch,
-                if (seen.add(item.contentId)) {
+                    targetSize = minOf(targetPerBucket, RECOMMEND_TARGET_SIZE - result.size),
-                    result.add(item)
+                    seenIds = seenIds
+                )
+                if (selected.isNotEmpty()) {
+                    result.addAll(selected)
                 }
             }
         }
 
-        return getTranslatedContentList(contentList = result)
+        return result.take(RECOMMEND_TARGET_SIZE).shuffled()
     }
 
-    /**
+    private fun pickByTimeDecay(
-     * 콘텐츠 리스트의 제목을 현재 언어(locale)에 맞춰 일괄 번역한다.
+        batch: List<AudioContentMainItem>,
-     *
+        targetSize: Int,
-     * 처리 절차:
+        seenIds: MutableSet<Long>
-     * - 입력된 콘텐츠들의 contentId 집합을 만들고, 요청 언어 코드(langContext.lang.code)로
+    ): List<AudioContentMainItem> {
-     *   contentTranslationRepository에서 번역 데이터를 한 번에 조회한다.
+        if (targetSize <= 0 || batch.isEmpty()) return emptyList()
-     * - 각 항목에 대해 번역된 제목이 존재하고 비어있지 않으면 title만 번역 값으로 교체한다.
-     * - 번역이 없거나 공백이면 원본 항목을 그대로 반환한다.
-     *
-     * 성능:
-     * - N건의 항목을 1회의 조회로 해결하기 위해 IN 쿼리를 사용한다.
-     *
-     * @param contentList 번역 대상 AudioContentMainItem 목록
-     * @return 제목이 가능한 항목은 번역된 목록(불변 사본), 그 외는 원본 항목 유지
-     */
-    private fun getTranslatedContentList(contentList: List<AudioContentMainItem>): List<AudioContentMainItem> {
-        val contentIds = contentList.map { it.contentId }
 
-        return if (contentIds.isNotEmpty()) {
+        val candidates = batch
-            val translations = contentTranslationRepository
+            .asSequence()
-                .findByContentIdInAndLocale(contentIds = contentIds, locale = langContext.lang.code)
+            .filterNot { seenIds.contains(it.contentId) }
-                .associateBy { it.contentId }
+            .mapIndexed { index, item -> DecayCandidate(item = item, rank = index) }
+            .toMutableList()
 
-            contentList.map { item ->
+        if (candidates.isEmpty()) return emptyList()
-                val translatedTitle = translations[item.contentId]?.renderedPayload?.title
+
-                if (translatedTitle.isNullOrBlank()) {
+        val selected = mutableListOf<AudioContentMainItem>()
-                    item
+        while (selected.size < targetSize && candidates.isNotEmpty()) {
-                } else {
+            val selectedIndex = selectByWeight(candidates)
-                    item.copy(title = translatedTitle)
+            val chosen = candidates.removeAt(selectedIndex).item
-                }
+            if (seenIds.add(chosen.contentId)) {
-            }
+                selected.add(chosen)
-        } else {
-            contentList
             }
         }
 
-    /**
+        return selected
-     * 시리즈 리스트의 제목을 현재 언어(locale)에 맞춰 일괄 번역한다.
-     *
-     * 처리 절차:
-     * - 입력된 시리즈들의 seriesId 집합을 만들고, 요청 언어 코드(langContext.lang.code)로
-     *   seriesTranslationRepository에서 번역 데이터를 한 번에 조회한다.
-     * - 각 항목에 대해 번역된 제목이 존재하고 비어있지 않으면 title만 번역 값으로 교체한다.
-     * - 번역이 없거나 공백이면 원본 항목을 그대로 반환한다.
-     *
-     * 성능:
-     * - N건의 항목을 1회의 조회로 해결하기 위해 IN 쿼리를 사용한다.
-     *
-     * @param seriesList 번역 대상 SeriesListItem 목록
-     * @return 제목이 가능한 항목은 번역된 목록(불변 사본), 그 외는 원본 항목 유지
-     */
-    private fun getTranslatedSeriesList(
-        seriesList: List<GetSeriesListResponse.SeriesListItem>
-    ): List<GetSeriesListResponse.SeriesListItem> {
-        val seriesIds = seriesList.map { it.seriesId }
-
-        return if (seriesIds.isNotEmpty()) {
-            val translations = seriesTranslationRepository
-                .findBySeriesIdInAndLocale(seriesIds = seriesIds, locale = langContext.lang.code)
-                .associateBy { it.seriesId }
-
-            seriesList.map { item ->
-                val translatedTitle = translations[item.seriesId]?.renderedPayload?.title
-                if (translatedTitle.isNullOrBlank()) {
-                    item
-                } else {
-                    item.copy(title = translatedTitle)
     }
-            }
+
-        } else {
+    private fun selectByWeight(candidates: List<DecayCandidate>): Int {
-            seriesList
+        val weights = candidates.map { 0.5.pow(it.rank / TIME_DECAY_HALF_LIFE_RANK) }
+        val totalWeight = weights.sum()
+
+        var randomPoint = Math.random() * totalWeight
+        for (index in weights.indices) {
+            randomPoint -= weights[index]
+            if (randomPoint <= 0) {
+                return index
             }
         }
 
-    /**
+        return candidates.lastIndex
-     * AI 캐릭터 리스트의 이름/설명을 현재 언어(locale)에 맞춰 일괄 번역한다.
+    }
-     *
-     * 처리 절차:
-     * - characterId 목록을 추출하고, 요청 언어 코드로 aiCharacterTranslationRepository에서
-     *   번역 데이터를 한 번에 조회한다.
-     * - 각 캐릭터에 대해 name과 description 모두 번역 값이 존재하고 비어있지 않을 때에만
-     *   해당 필드를 교체한다. 둘 중 하나라도 없으면 원본 캐릭터를 그대로 유지한다.
-     *
-     * @param aiCharacterList 번역 대상 캐릭터 목록
-     * @return 가능한 경우 name/description이 번역된 캐릭터 목록, 그 외는 원본 유지
-     */
-    private fun getTranslatedAiCharacterList(aiCharacterList: List<Character>): List<Character> {
-        val characterIds = aiCharacterList.map { it.characterId }
 
-        return if (characterIds.isNotEmpty()) {
+    private fun getRandomizedContentList(
-            val translations = aiCharacterTranslationRepository
+        memberId: Long?,
-                .findByCharacterIdInAndLocale(characterIds = characterIds, locale = langContext.lang.code)
+        isAdult: Boolean,
-                .associateBy { it.characterId }
+        contentType: ContentType,
+        theme: List<String>,
+        isFree: Boolean,
+        isPointAvailableOnly: Boolean,
+        targetSize: Int = 20
+    ): List<AudioContentMainItem> {
+        val buckets = listOf(
+            RecommendBucket(offset = 0L, limit = 50L),
+            RecommendBucket(offset = 50L, limit = 100L),
+            RecommendBucket(offset = 150L, limit = 150L)
+        )
 
-            aiCharacterList.map { character ->
+        val result = mutableListOf<AudioContentMainItem>()
-                val translatedName = translations[character.characterId]?.renderedPayload?.name
+        val seenIds = mutableSetOf<Long>()
-                val translatedDesc = translations[character.characterId]?.renderedPayload?.description
+
-                if (translatedName.isNullOrBlank() || translatedDesc.isNullOrBlank()) {
+        repeat(RECOMMEND_MAX_ATTEMPTS) {
-                    character
+            if (result.size >= targetSize) return@repeat
-                } else {
+
-                    character.copy(name = translatedName, description = translatedDesc)
+            val remaining = targetSize - result.size
-                }
+            val targetPerBucket = maxOf(1, (remaining + buckets.size - 1) / buckets.size)
-            }
+
-        } else {
+            for (bucket in buckets) {
-            aiCharacterList
+                if (result.size >= targetSize) break
+
+                val batch = contentService.getLatestContentByTheme(
+                    memberId = memberId,
+                    theme = theme,
+                    contentType = contentType,
+                    offset = bucket.offset,
+                    limit = bucket.limit,
+                    sortType = SortType.NEWEST,
+                    isFree = isFree,
+                    isAdult = isAdult,
+                    orderByRandom = false,
+                    isPointAvailableOnly = isPointAvailableOnly,
+                    excludeContentIds = seenIds.toList()
+                )
+
+                val selected = pickByTimeDecay(
+                    batch = batch,
+                    targetSize = minOf(targetPerBucket, targetSize - result.size),
+                    seenIds = seenIds
+                )
+                if (selected.isNotEmpty()) {
+                    result.addAll(selected)
                 }
             }
         }
+
+        return result.take(targetSize).shuffled()
+    }
+}

src/main/kotlin/kr/co/vividnext/sodalive/chat/character/controller/ChatCharacterController.kt

@@ -100,7 +100,7 @@ class ChatCharacterController(
         }
 
         // 인기 캐릭터 조회
-        val popularCharacters = service.getPopularCharacters()
+        val popularCharacters = service.getPopularCharacters(locale = langContext.lang.code)
 
         // 최근 등록된 캐릭터 리스트 조회
         val newCharacters = service.getRecentCharactersPage(
@@ -138,7 +138,7 @@ class ChatCharacterController(
             CharacterMainResponse(
                 banners = banners,
                 recentCharacters = translatedRecentCharacters,
-                popularCharacters = getTranslatedAiCharacterList(popularCharacters),
+                popularCharacters = popularCharacters,
                 newCharacters = getTranslatedAiCharacterList(newCharacters),
                 recommendCharacters = getTranslatedAiCharacterList(recommendCharacters),
                 curationSections = curationSections

src/main/kotlin/kr/co/vividnext/sodalive/chat/character/service/ChatCharacterService.kt

@@ -77,18 +77,23 @@ class ChatCharacterService(
      */
     @Transactional(readOnly = true)
     @Cacheable(
-        cacheNames = ["popularCharacters_24h"],
+        cacheNames = ["popularCharacters_24h_locale"],
-        key = "T(kr.co.vividnext.sodalive.chat.character.service.RankingWindowCalculator).now('popular-character').cacheKey"
+        key = "T(kr.co.vividnext.sodalive.chat.character.service.RankingWindowCalculator)" +
+            ".now('popular-character').cacheKey + '-' + #locale"
     )
-    fun getPopularCharacters(limit: Long = 20): List<Character> {
+    fun getPopularCharacters(locale: String, limit: Long = 20): List<Character> {
         val window = RankingWindowCalculator.now("popular-character")
-        val topIds = popularCharacterQuery.findPopularCharacterIds(window.windowStart, window.nextBoundary, limit)
+        val results = popularCharacterQuery.findPopularCharactersWithTranslation(
-        val list = loadCharactersInOrder(topIds)
+            window.windowStart,
+            window.nextBoundary,
+            limit,
+            locale
+        )
 
-        val recentSet = if (list.isNotEmpty()) {
+        val recentSet = if (results.isNotEmpty()) {
             imageRepository
                 .findCharacterIdsWithRecentImages(
-                    list.map { it.id!! },
+                    results.map { it.id },
                     LocalDateTime.now().minusDays(3)
                 )
                 .toSet()
@@ -96,11 +101,11 @@ class ChatCharacterService(
             emptySet()
         }
 
-        return list.map {
+        return results.map {
             Character(
-                characterId = it.id!!,
+                characterId = it.id,
-                name = it.name,
+                name = it.translatedPayload?.name.takeIf { name -> !name.isNullOrBlank() } ?: it.name,
-                description = it.description,
+                description = it.translatedPayload?.description.takeIf { desc -> !desc.isNullOrBlank() } ?: it.description,
                 imageUrl = "$imageHost/${it.imagePath ?: "profile/default-profile.png"}",
                 new = recentSet.contains(it.id)
             )

src/main/kotlin/kr/co/vividnext/sodalive/chat/character/service/PopularCharacterQuery.kt

@@ -1,7 +1,10 @@
 package kr.co.vividnext.sodalive.chat.character.service
 
+import com.querydsl.core.types.Projections
 import com.querydsl.jpa.impl.JPAQueryFactory
 import kr.co.vividnext.sodalive.chat.character.QChatCharacter
+import kr.co.vividnext.sodalive.chat.character.translate.AiCharacterTranslationRenderedPayload
+import kr.co.vividnext.sodalive.chat.character.translate.QAiCharacterTranslation
 import kr.co.vividnext.sodalive.chat.room.ParticipantType
 import kr.co.vividnext.sodalive.chat.room.QChatMessage
 import kr.co.vividnext.sodalive.chat.room.QChatParticipant
@@ -51,4 +54,56 @@ class PopularCharacterQuery(
             .limit(limit)
             .fetch()
     }
+
+    data class PopularCharacterQueryResult(
+        val id: Long,
+        val name: String,
+        val description: String,
+        val imagePath: String?,
+        val translatedPayload: AiCharacterTranslationRenderedPayload?
+    )
+
+    fun findPopularCharactersWithTranslation(
+        windowStart: Instant,
+        endExclusive: Instant,
+        limit: Long,
+        locale: String
+    ): List<PopularCharacterQueryResult> {
+        val m = QChatMessage.chatMessage
+        val p = QChatParticipant.chatParticipant
+        val c = QChatCharacter.chatCharacter
+        val t = QAiCharacterTranslation.aiCharacterTranslation
+
+        val start = LocalDateTime.ofInstant(windowStart, ZoneOffset.UTC)
+        val end = LocalDateTime.ofInstant(endExclusive, ZoneOffset.UTC)
+
+        return queryFactory
+            .select(
+                Projections.constructor(
+                    PopularCharacterQueryResult::class.java,
+                    c.id,
+                    c.name,
+                    c.description,
+                    c.imagePath,
+                    t.renderedPayload
+                )
+            )
+            .from(m)
+            .join(p).on(
+                p.chatRoom.id.eq(m.chatRoom.id)
+                    .and(p.participantType.eq(ParticipantType.CHARACTER))
+            )
+            .join(c).on(c.id.eq(p.character.id))
+            .leftJoin(t).on(t.characterId.eq(c.id).and(t.locale.eq(locale)))
+            .where(
+                m.createdAt.goe(start)
+                    .and(m.createdAt.lt(end))
+                    .and(m.isActive.isTrue)
+                    .and(c.isActive.isTrue)
+            )
+            .groupBy(c.id, c.name, c.description, c.imagePath, t.id, t.renderedPayload)
+            .orderBy(m.id.count().desc())
+            .limit(limit)
+            .fetch()
+    }
 }

src/main/kotlin/kr/co/vividnext/sodalive/content/AudioContentRepository.kt

@@ -25,6 +25,7 @@ import kr.co.vividnext.sodalive.content.pin.QPinContent.pinContent
 import kr.co.vividnext.sodalive.content.playlist.AudioContentPlaylistContent
 import kr.co.vividnext.sodalive.content.playlist.QAudioContentPlaylistContent
 import kr.co.vividnext.sodalive.content.theme.QAudioContentTheme.audioContentTheme
+import kr.co.vividnext.sodalive.content.translation.QContentTranslation.contentTranslation
 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.event.QEvent.event
@@ -178,6 +179,7 @@ interface AudioContentQueryRepository {
     fun findContentIdAndHashTagId(contentId: Long, hashTagId: Int): AudioContentHashTag?
 
     fun getLatestContentByTheme(
+        memberId: Long? = null,
         theme: List<String>,
         contentType: ContentType,
         offset: Long,
@@ -186,7 +188,9 @@ interface AudioContentQueryRepository {
         isFree: Boolean,
         isAdult: Boolean,
         orderByRandom: Boolean = false,
-        isPointAvailableOnly: Boolean = false
+        isPointAvailableOnly: Boolean = false,
+        excludeContentIds: List<Long> = emptyList(),
+        locale: String? = null
     ): List<AudioContentMainItem>
 
     fun findContentByCurationId(
@@ -1319,6 +1323,7 @@ class AudioContentQueryRepositoryImpl(
     }
 
     override fun getLatestContentByTheme(
+        memberId: Long?,
         theme: List<String>,
         contentType: ContentType,
         offset: Long,
@@ -1327,8 +1332,18 @@ class AudioContentQueryRepositoryImpl(
         isFree: Boolean,
         isAdult: Boolean,
         orderByRandom: Boolean,
-        isPointAvailableOnly: Boolean
+        isPointAvailableOnly: Boolean,
+        excludeContentIds: List<Long>,
+        locale: String?
     ): List<AudioContentMainItem> {
+        val blockMemberCondition = if (memberId != null) {
+            blockMember.member.id.eq(member.id)
+                .and(blockMember.isActive.isTrue)
+                .and(blockMember.blockedMember.id.eq(memberId))
+        } else {
+            null
+        }
+
         var where = audioContent.isActive.isTrue
             .and(audioContent.duration.isNotNull)
             .and(
@@ -1366,6 +1381,31 @@ class AudioContentQueryRepositoryImpl(
             where = where.and(audioContent.isPointAvailable.isTrue)
         }
 
+        if (excludeContentIds.isNotEmpty()) {
+            where = where.and(audioContent.id.notIn(excludeContentIds))
+        }
+
+        if (locale == null) {
+            var select = queryFactory
+                .select(
+                    QAudioContentMainItem(
+                        audioContent.id,
+                        member.id,
+                        audioContent.title,
+                        audioContent.coverImage.prepend("/").prepend(imageHost),
+                        member.nickname,
+                        audioContent.isPointAvailable
+                    )
+                )
+                .from(audioContent)
+                .innerJoin(audioContent.member, member)
+                .innerJoin(audioContent.theme, audioContentTheme)
+
+            if (memberId != null) {
+                where = where.and(blockMember.id.isNull)
+                select = select.leftJoin(blockMember).on(blockMemberCondition)
+            }
+
             val orderBy = if (orderByRandom) {
                 Expressions.numberTemplate(Double::class.java, "function('rand')").asc()
             } else {
@@ -1387,20 +1427,7 @@ class AudioContentQueryRepositoryImpl(
                 }
             }
 
-        return queryFactory
+            return select
-            .select(
-                QAudioContentMainItem(
-                    audioContent.id,
-                    member.id,
-                    audioContent.title,
-                    audioContent.coverImage.prepend("/").prepend(imageHost),
-                    member.nickname,
-                    audioContent.isPointAvailable
-                )
-            )
-            .from(audioContent)
-            .innerJoin(audioContent.member, member)
-            .innerJoin(audioContent.theme, audioContentTheme)
                 .where(where)
                 .offset(offset)
                 .limit(limit)
@@ -1408,6 +1435,78 @@ class AudioContentQueryRepositoryImpl(
                 .fetch()
         }
 
+        val coverImageUrl = audioContent.coverImage.prepend("/").prepend(imageHost)
+
+        var select = queryFactory
+            .select(
+                audioContent.id,
+                member.id,
+                audioContent.title,
+                contentTranslation.renderedPayload,
+                coverImageUrl,
+                member.nickname,
+                audioContent.isPointAvailable
+            )
+            .from(audioContent)
+            .innerJoin(audioContent.member, member)
+            .innerJoin(audioContent.theme, audioContentTheme)
+            .leftJoin(contentTranslation)
+            .on(contentTranslation.contentId.eq(audioContent.id).and(contentTranslation.locale.eq(locale)))
+
+        if (memberId != null) {
+            where = where.and(blockMember.id.isNull)
+            select = select.leftJoin(blockMember).on(blockMemberCondition)
+        }
+
+        val orderBy = if (orderByRandom) {
+            Expressions.numberTemplate(Double::class.java, "function('rand')").asc()
+        } else {
+            when (sortType) {
+                SortType.NEWEST -> audioContent.releaseDate.desc()
+                SortType.PRICE_HIGH -> if (isFree) {
+                    audioContent.releaseDate.desc()
+                } else {
+                    audioContent.price.desc()
+                }
+
+                SortType.PRICE_LOW -> if (isFree) {
+                    audioContent.releaseDate.asc()
+                } else {
+                    audioContent.price.desc()
+                }
+
+                SortType.POPULARITY -> audioContent.playCount.desc()
+            }
+        }
+
+        val results = select
+            .where(where)
+            .offset(offset)
+            .limit(limit)
+            .orderBy(orderBy)
+            .fetch()
+
+        return results.map { row ->
+            val contentId = row.get(audioContent.id)!!
+            val creatorId = row.get(member.id)!!
+            val originTitle = row.get(audioContent.title)!!
+            val payload = row.get(contentTranslation.renderedPayload)
+            val translatedTitle = payload?.title
+            val imageUrl = row.get(coverImageUrl)!!
+            val creatorNickname = row.get(member.nickname)!!
+            val isPointAvailableValue = row.get(audioContent.isPointAvailable) ?: false
+
+            AudioContentMainItem(
+                contentId = contentId,
+                creatorId = creatorId,
+                title = if (translatedTitle.isNullOrBlank()) originTitle else translatedTitle,
+                coverImageUrl = imageUrl,
+                creatorNickname = creatorNickname,
+                isPointAvailable = isPointAvailableValue
+            )
+        }
+    }
+
     override fun findContentByCurationId(
         curationId: Long,
         isAdult: Boolean,

src/main/kotlin/kr/co/vividnext/sodalive/content/AudioContentService.kt

@@ -1198,6 +1198,7 @@ class AudioContentService(
 
     @Transactional(readOnly = true)
     fun getLatestContentByTheme(
+        memberId: Long? = null,
         theme: List<String>,
         contentType: ContentType,
         offset: Long = 0,
@@ -1206,7 +1207,8 @@ class AudioContentService(
         isFree: Boolean = false,
         isAdult: Boolean = false,
         orderByRandom: Boolean = false,
-        isPointAvailableOnly: Boolean = false
+        isPointAvailableOnly: Boolean = false,
+        excludeContentIds: List<Long> = emptyList()
     ): List<AudioContentMainItem> {
         /**
          * - AS-IS theme은 한글만 처리하도록 되어 있음
@@ -1220,7 +1222,8 @@ class AudioContentService(
             isPointAvailableOnly = isPointAvailableOnly
         )
 
-        val contentList = repository.getLatestContentByTheme(
+        return repository.getLatestContentByTheme(
+            memberId = memberId,
             theme = normalizedTheme,
             contentType = contentType,
             offset = offset,
@@ -1229,26 +1232,10 @@ class AudioContentService(
             isFree = isFree,
             isAdult = isAdult,
             orderByRandom = orderByRandom,
-            isPointAvailableOnly = isPointAvailableOnly
+            isPointAvailableOnly = isPointAvailableOnly,
+            excludeContentIds = excludeContentIds,
+            locale = langContext.lang.code
         )
-
-        val contentIds = contentList.map { it.contentId }
-        return if (contentIds.isNotEmpty()) {
-            val translations = contentTranslationRepository
-                .findByContentIdInAndLocale(contentIds = contentIds, locale = langContext.lang.code)
-                .associateBy { it.contentId }
-
-            contentList.map { item ->
-                val translatedTitle = translations[item.contentId]?.renderedPayload?.title
-                if (translatedTitle.isNullOrBlank()) {
-                    item
-                } else {
-                    item.copy(title = translatedTitle)
-                }
-            }
-        } else {
-            contentList
-        }
     }
 
     /**

src/main/kotlin/kr/co/vividnext/sodalive/content/series/ContentSeriesService.kt

@@ -12,10 +12,8 @@ import kr.co.vividnext.sodalive.content.series.translation.SeriesTranslationPayl
 import kr.co.vividnext.sodalive.content.series.translation.SeriesTranslationRepository
 import kr.co.vividnext.sodalive.content.series.translation.TranslatedSeries
 import kr.co.vividnext.sodalive.content.translation.ContentTranslationRepository
-import kr.co.vividnext.sodalive.creator.admin.content.series.Series
 import kr.co.vividnext.sodalive.creator.admin.content.series.SeriesPublishedDaysOfWeek
 import kr.co.vividnext.sodalive.creator.admin.content.series.SeriesSortType
-import kr.co.vividnext.sodalive.creator.admin.content.series.SeriesState
 import kr.co.vividnext.sodalive.explorer.ExplorerQueryRepository
 import kr.co.vividnext.sodalive.i18n.Lang
 import kr.co.vividnext.sodalive.i18n.LangContext
@@ -26,7 +24,6 @@ import kr.co.vividnext.sodalive.member.block.BlockMemberRepository
 import org.springframework.beans.factory.annotation.Value
 import org.springframework.stereotype.Service
 import org.springframework.transaction.annotation.Transactional
-import java.time.LocalDateTime
 import java.time.ZoneId
 import java.time.format.DateTimeFormatter
 
@@ -55,12 +52,21 @@ class ContentSeriesService(
     fun getOriginalAudioDramaList(
         isAdult: Boolean,
         contentType: ContentType,
-        orderByRandom: Boolean = false,
         offset: Long = 0,
         limit: Long = 20
     ): List<GetSeriesListResponse.SeriesListItem> {
-        val originalAudioDramaList = repository.getOriginalAudioDramaList(isAdult, contentType, orderByRandom, offset, limit)
+        val originalAudioDramaList = repository.getOriginalAudioDramaList(
-        return getTranslatedSeriesList(seriesToSeriesListItem(originalAudioDramaList, isAdult, contentType))
+            imageHost = coverImageHost,
+            isAdult = isAdult,
+            contentType = contentType,
+            locale = langContext.lang.code,
+            offset = offset,
+            limit = limit
+        )
+
+        return originalAudioDramaList.map { item ->
+            item.copy(publishedDaysOfWeek = publishedDaysOfWeekText(item.rawPublishedDaysOfWeek))
+        }
     }
 
     fun getGenreList(memberId: Long, isAdult: Boolean, contentType: ContentType): List<GetSeriesGenreListResponse> {
@@ -151,10 +157,11 @@ class ContentSeriesService(
             isAuth = isAuth,
             contentType = contentType,
             isOriginal = isOriginal,
-            isCompleted = isCompleted
+            isCompleted = isCompleted,
+            memberId = member.id
         )
 
-        val rawItems = repository.getSeriesList(
+        val items = repository.getSeriesListV2(
             imageHost = coverImageHost,
             creatorId = creatorId,
             isAuth = isAuth,
@@ -163,11 +170,14 @@ class ContentSeriesService(
             isCompleted = isCompleted,
             orderByRandom = orderByRandom,
             offset = offset,
-            limit = limit
+            limit = limit,
-        ).filter { !blockMemberRepository.isBlocked(blockedMemberId = member.id!!, memberId = it.member!!.id!!) }
+            locale = langContext.lang.code,
+            memberId = member.id
+        ).map { item ->
+            item.copy(publishedDaysOfWeek = publishedDaysOfWeekText(item.rawPublishedDaysOfWeek))
+        }
 
-        val items = seriesToSeriesListItem(seriesList = rawItems, isAdult = isAuth, contentType = contentType)
+        return GetSeriesListResponse(totalCount, items)
-        return GetSeriesListResponse(totalCount, getTranslatedSeriesList(items))
     }
 
     fun getSeriesListByGenre(
@@ -183,20 +193,24 @@ class ContentSeriesService(
         val totalCount = repository.getSeriesByGenreTotalCount(
             genreId = genreId,
             isAuth = isAuth,
-            contentType = contentType
+            contentType = contentType,
+            memberId = member.id
         )
 
-        val rawItems = repository.getSeriesByGenreList(
+        val items = repository.getSeriesByGenreListV2(
             imageHost = coverImageHost,
             genreId = genreId,
             isAuth = isAuth,
             contentType = contentType,
             offset = offset,
-            limit = limit
+            limit = limit,
-        ).filter { !blockMemberRepository.isBlocked(blockedMemberId = member.id!!, memberId = it.member!!.id!!) }
+            locale = langContext.lang.code,
+            memberId = member.id
+        ).map { item ->
+            item.copy(publishedDaysOfWeek = publishedDaysOfWeekText(item.rawPublishedDaysOfWeek))
+        }
 
-        val items = seriesToSeriesListItem(seriesList = rawItems, isAdult = isAuth, contentType = contentType)
+        return GetSeriesListResponse(totalCount, items)
-        return GetSeriesListResponse(totalCount, getTranslatedSeriesList(items))
     }
 
     @Transactional
@@ -459,19 +473,16 @@ class ContentSeriesService(
         member: Member
     ): List<GetSeriesListResponse.SeriesListItem> {
         val isAuth = member.auth != null && isAdultContentVisible
-        val seriesList = repository.getRecommendSeriesList(
+        return repository.getRecommendSeriesListV2(
+            imageHost = coverImageHost,
             isAuth = isAuth,
             contentType = contentType,
-            limit = 20
+            limit = 20,
-        ).filter { !blockMemberRepository.isBlocked(blockedMemberId = member.id!!, memberId = it.member!!.id!!) }
+            locale = langContext.lang.code,
-
+            memberId = member.id
-        return getTranslatedSeriesList(
+        ).map { item ->
-            seriesToSeriesListItem(
+            item.copy(publishedDaysOfWeek = publishedDaysOfWeekText(item.rawPublishedDaysOfWeek))
-                seriesList = seriesList,
+        }
-                isAdult = isAuth,
-                contentType = contentType
-            )
-        )
     }
 
     fun fetchSeriesByCurationId(
@@ -480,13 +491,16 @@ class ContentSeriesService(
         isAdult: Boolean,
         contentType: ContentType
     ): List<GetSeriesListResponse.SeriesListItem> {
-        val seriesList = repository.findByCurationId(
+        return repository.findByCurationIdV2(
+            imageHost = coverImageHost,
             curationId = curationId,
             memberId = memberId,
             isAdult = isAdult,
-            contentType = contentType
+            contentType = contentType,
-        )
+            locale = langContext.lang.code
-        return getTranslatedSeriesList(seriesToSeriesListItem(seriesList, isAdult, contentType))
+        ).map { item ->
+            item.copy(publishedDaysOfWeek = publishedDaysOfWeekText(item.rawPublishedDaysOfWeek))
+        }
     }
 
     fun getDayOfWeekSeriesList(
@@ -497,71 +511,17 @@ class ContentSeriesService(
         offset: Long = 0,
         limit: Long = 10
     ): List<GetSeriesListResponse.SeriesListItem> {
-        var seriesList = repository.getDayOfWeekSeriesList(
+        return repository.getDayOfWeekSeriesListV2(
+            imageHost = coverImageHost,
             dayOfWeek = dayOfWeek,
             contentType = contentType,
             isAdult = isAdult,
             offset = offset,
-            limit = limit
+            limit = limit,
-        )
+            locale = langContext.lang.code,
-
+            memberId = memberId
-        seriesList = if (memberId != null) {
+        ).map { item ->
-            seriesList.filter {
+            item.copy(publishedDaysOfWeek = publishedDaysOfWeekText(item.rawPublishedDaysOfWeek))
-                !blockMemberRepository.isBlocked(
-                    blockedMemberId = memberId,
-                    memberId = it.member!!.id!!
-                )
-            }
-        } else {
-            seriesList
-        }
-
-        return getTranslatedSeriesList(seriesToSeriesListItem(seriesList, isAdult, contentType))
-    }
-
-    private fun seriesToSeriesListItem(
-        seriesList: List<Series>,
-        isAdult: Boolean,
-        contentType: ContentType
-    ): List<GetSeriesListResponse.SeriesListItem> {
-        return seriesList
-            .map {
-                GetSeriesListResponse.SeriesListItem(
-                    seriesId = it.id!!,
-                    title = it.title,
-                    coverImage = "$coverImageHost/${it.coverImage!!}",
-                    publishedDaysOfWeek = publishedDaysOfWeekText(it.publishedDaysOfWeek),
-                    isComplete = it.state == SeriesState.COMPLETE,
-                    creator = GetSeriesListResponse.SeriesListItemCreator(
-                        creatorId = it.member!!.id!!,
-                        nickname = it.member!!.nickname,
-                        profileImage = "$coverImageHost/${it.member!!.profileImage!!}"
-                    )
-                )
-            }
-            .map {
-                it.numberOfContent = seriesContentRepository.getContentCount(
-                    seriesId = it.seriesId,
-                    isAdult = isAdult,
-                    contentType = contentType
-                )
-
-                it
-            }
-            .filter {
-                it.numberOfContent > 0
-            }
-            .map {
-                val nowDateTime = LocalDateTime.now()
-
-                it.isNew = seriesContentRepository.isNewContent(
-                    seriesId = it.seriesId,
-                    isAdult = isAdult,
-                    fromDate = nowDateTime.minusDays(7),
-                    nowDate = nowDateTime
-                )
-
-                it
         }
     }
 
@@ -632,39 +592,4 @@ class ContentSeriesService(
             }
         }
     }
-
-    /**
-     * 시리즈 리스트의 제목을 현재 언어(locale)에 맞춰 일괄 번역한다.
-     *
-     * 처리 절차:
-     * - 입력된 시리즈들의 seriesId 집합을 만들고, 요청 언어 코드(langContext.lang.code)로
-     *   seriesTranslationRepository에서 번역 데이터를 한 번에 조회한다.
-     * - 각 항목에 대해 번역된 제목이 존재하고 비어있지 않으면 title만 번역 값으로 교체한다.
-     * - 번역이 없거나 공백이면 원본 항목을 그대로 반환한다.
-     *
-     * 성능:
-     * - N건의 항목을 1회의 조회로 해결하기 위해 IN 쿼리를 사용한다.
-     *
-     * @param seriesList 번역 대상 SeriesListItem 목록
-     * @return 제목이 가능한 항목은 번역된 목록(불변 사본), 그 외는 원본 항목 유지
-     */
-    private fun getTranslatedSeriesList(
-        seriesList: List<GetSeriesListResponse.SeriesListItem>
-    ): List<GetSeriesListResponse.SeriesListItem> {
-        val seriesIds = seriesList.map { it.seriesId }
-        if (seriesIds.isEmpty()) return seriesList
-
-        val translations = seriesTranslationRepository
-            .findBySeriesIdInAndLocale(seriesIds = seriesIds, locale = langContext.lang.code)
-            .associateBy { it.seriesId }
-
-        return seriesList.map { item ->
-            val translatedTitle = translations[item.seriesId]?.renderedPayload?.title
-            if (translatedTitle.isNullOrBlank()) {
-                item
-            } else {
-                item.copy(title = translatedTitle)
-            }
-        }
-    }
 }

src/main/kotlin/kr/co/vividnext/sodalive/content/series/GetSeriesListResponse.kt

@@ -1,10 +1,13 @@
 package kr.co.vividnext.sodalive.content.series
 
+import com.querydsl.core.annotations.QueryProjection
+import kr.co.vividnext.sodalive.creator.admin.content.series.SeriesPublishedDaysOfWeek
+
 data class GetSeriesListResponse(
     val totalCount: Int,
     val items: List<SeriesListItem>
 ) {
-    data class SeriesListItem(
+    data class SeriesListItem @QueryProjection constructor(
         val seriesId: Long,
         val title: String,
         val coverImage: String,
@@ -13,10 +16,11 @@ data class GetSeriesListResponse(
         val creator: SeriesListItemCreator,
         var numberOfContent: Int = 0,
         var isNew: Boolean = false,
-        var isPopular: Boolean = false
+        var isPopular: Boolean = false,
+        val rawPublishedDaysOfWeek: Set<SeriesPublishedDaysOfWeek> = emptySet()
     )
 
-    data class SeriesListItemCreator(
+    data class SeriesListItemCreator @QueryProjection constructor(
         val creatorId: Long,
         val nickname: String,
         val profileImage: String

src/main/kotlin/kr/co/vividnext/sodalive/explorer/ExplorerQueryRepository.kt

@@ -637,6 +637,23 @@ class ExplorerQueryRepository(
             .fetchOne() ?: false
     }
 
+    fun getFollowedCreatorIds(creatorIds: List<Long>, memberId: Long): Set<Long> {
+        if (creatorIds.isEmpty()) {
+            return emptySet()
+        }
+
+        return queryFactory
+            .select(creatorFollowing.creator.id)
+            .from(creatorFollowing)
+            .where(
+                creatorFollowing.isActive.isTrue
+                    .and(creatorFollowing.creator.id.`in`(creatorIds))
+                    .and(creatorFollowing.member.id.eq(memberId))
+            )
+            .fetch()
+            .toSet()
+    }
+
     fun getCreatorCheers(cheersId: Long): CreatorCheers? {
         return queryFactory
             .selectFrom(creatorCheers)

src/main/kotlin/kr/co/vividnext/sodalive/query/recommend/RecommendChannelQueryRepository.kt

@@ -6,9 +6,12 @@ import kr.co.vividnext.sodalive.content.ContentType
 import kr.co.vividnext.sodalive.content.QAudioContent.audioContent
 import kr.co.vividnext.sodalive.content.comment.QAudioContentComment.audioContentComment
 import kr.co.vividnext.sodalive.content.like.QAudioContentLike.audioContentLike
+import kr.co.vividnext.sodalive.content.translation.ContentTranslationPayload
+import kr.co.vividnext.sodalive.content.translation.QContentTranslation.contentTranslation
 import kr.co.vividnext.sodalive.member.MemberRole
 import kr.co.vividnext.sodalive.member.QMember.member
 import kr.co.vividnext.sodalive.member.auth.QAuth.auth
+import kr.co.vividnext.sodalive.member.block.QBlockMember.blockMember
 import org.springframework.beans.factory.annotation.Value
 import org.springframework.stereotype.Repository
 
@@ -19,7 +22,19 @@ class RecommendChannelQueryRepository(
     @Value("\${cloud.aws.cloud-front.host}")
     private val imageHost: String
 ) {
-    fun getRecommendChannelList(isAdult: Boolean, contentType: ContentType): List<RecommendChannelResponse> {
+    fun getRecommendChannelList(
+        memberId: Long?,
+        isAdult: Boolean,
+        contentType: ContentType
+    ): List<RecommendChannelResponse> {
+        val blockMemberCondition = if (memberId != null) {
+            blockMember.member.id.eq(member.id)
+                .and(blockMember.isActive.isTrue)
+                .and(blockMember.blockedMember.id.eq(memberId))
+        } else {
+            null
+        }
+
         var where = member.role.eq(MemberRole.CREATOR)
             .and(audioContent.isActive.isTrue)
 
@@ -39,7 +54,7 @@ class RecommendChannelQueryRepository(
             }
         }
 
-        return queryFactory
+        var select = queryFactory
             .select(
                 QRecommendChannelResponse(
                     member.id,
@@ -52,6 +67,13 @@ class RecommendChannelQueryRepository(
             .from(member)
             .innerJoin(auth).on(auth.member.id.eq(member.id))
             .innerJoin(audioContent).on(audioContent.member.id.eq(member.id))
+
+        if (memberId != null) {
+            where = where.and(blockMember.id.isNull)
+            select = select.leftJoin(blockMember).on(blockMemberCondition)
+        }
+
+        return select
             .where(where)
             .groupBy(member.id)
             .having(audioContent.id.count().goe(3))
@@ -60,22 +82,43 @@ class RecommendChannelQueryRepository(
             .fetch()
     }
 
-    fun getContentsByCreatorIdLikeDesc(creatorId: Long, isAdult: Boolean): List<RecommendChannelContentItem> {
+    fun getContentsByCreatorIdLikeDesc(
+        creatorId: Long,
+        memberId: Long?,
+        isAdult: Boolean,
+        locale: String? = null
+    ): List<RecommendChannelContentItem> {
+        val blockMemberCondition = if (memberId != null) {
+            blockMember.member.id.eq(audioContent.member.id)
+                .and(blockMember.isActive.isTrue)
+                .and(blockMember.blockedMember.id.eq(memberId))
+        } else {
+            null
+        }
+
         var where = audioContent.member.id.eq(creatorId)
 
         if (!isAdult) {
             where = where.and(audioContent.isAdult.isFalse)
         }
 
-        return queryFactory
+        val coverImageUrl = audioContent.coverImage.prepend("/").prepend(imageHost)
+        val payloadExpression = if (locale != null) {
+            contentTranslation.renderedPayload
+        } else {
+            Expressions.nullExpression(ContentTranslationPayload::class.java)
+        }
+        val likeCountExpression = audioContentLike.id.countDistinct()
+        val commentCountExpression = audioContentComment.id.countDistinct()
+
+        var select = queryFactory
             .select(
-                QRecommendChannelContentItem(
                 audioContent.id,
                 audioContent.title,
-                    audioContent.coverImage.prepend("/").prepend(imageHost),
+                payloadExpression,
-                    audioContentLike.id.countDistinct(),
+                coverImageUrl,
-                    audioContentComment.id.countDistinct()
+                likeCountExpression,
-                )
+                commentCountExpression
             )
             .from(audioContent)
             .leftJoin(audioContentLike)
@@ -88,10 +131,43 @@ class RecommendChannelQueryRepository(
                 audioContentComment.audioContent.id.eq(audioContent.id)
                     .and(audioContentComment.isActive.isTrue)
             )
+
+        if (locale != null) {
+            select = select.leftJoin(contentTranslation)
+                .on(
+                    contentTranslation.contentId.eq(audioContent.id)
+                        .and(contentTranslation.locale.eq(locale))
+                )
+        }
+
+        if (memberId != null) {
+            where = where.and(blockMember.id.isNull)
+            select = select.leftJoin(blockMember).on(blockMemberCondition)
+        }
+
+        val results = select
             .where(where)
             .groupBy(audioContent.id)
-            .orderBy(audioContentLike.id.countDistinct().desc())
+            .orderBy(likeCountExpression.desc())
             .limit(3)
             .fetch()
+
+        return results.map { row ->
+            val contentId = row.get(audioContent.id)!!
+            val originTitle = row.get(audioContent.title)!!
+            val payload = row.get(payloadExpression)
+            val translatedTitle = payload?.title
+            val thumbnailImageUrl = row.get(coverImageUrl)!!
+            val likeCount = row.get(likeCountExpression) ?: 0L
+            val commentCount = row.get(commentCountExpression) ?: 0L
+
+            RecommendChannelContentItem(
+                contentId = contentId,
+                title = if (translatedTitle.isNullOrBlank()) originTitle else translatedTitle,
+                thumbnailImageUrl = thumbnailImageUrl,
+                likeCount = likeCount,
+                commentCount = commentCount
+            )
+        }
     }
 }

src/main/kotlin/kr/co/vividnext/sodalive/query/recommend/RecommendChannelQueryService.kt

@@ -1,13 +1,17 @@
 package kr.co.vividnext.sodalive.query.recommend
 
 import kr.co.vividnext.sodalive.content.ContentType
+import kr.co.vividnext.sodalive.i18n.LangContext
 import org.springframework.cache.annotation.Cacheable
 import org.springframework.stereotype.Service
 import org.springframework.transaction.annotation.Transactional
 
 @Service
 @Transactional(readOnly = true)
-class RecommendChannelQueryService(private val repository: RecommendChannelQueryRepository) {
+class RecommendChannelQueryService(
+    private val repository: RecommendChannelQueryRepository,
+    private val langContext: LangContext
+) {
     @Cacheable(
         cacheNames = ["default"],
         key = "'recommendChannel:' + (#memberId ?: 'guest') + ':' + #isAdult + ':' + #contentType"
@@ -18,6 +22,7 @@ class RecommendChannelQueryService(private val repository: RecommendChannelQuery
         contentType: ContentType
     ): List<RecommendChannelResponse> {
         val recommendChannelList = repository.getRecommendChannelList(
+            memberId = memberId,
             isAdult = isAdult,
             contentType = contentType
         )
@@ -25,7 +30,9 @@ class RecommendChannelQueryService(private val repository: RecommendChannelQuery
         return recommendChannelList.map {
             it.contentList = repository.getContentsByCreatorIdLikeDesc(
                 creatorId = it.channelId,
-                isAdult = isAdult
+                memberId = memberId,
+                isAdult = isAdult,
+                locale = langContext.lang.code
             )
 
             it

src/main/kotlin/kr/co/vividnext/sodalive/rank/RankingRepository.kt

@@ -13,6 +13,7 @@ import kr.co.vividnext.sodalive.content.main.QContentCreatorResponse
 import kr.co.vividnext.sodalive.content.main.QGetAudioContentRankingItem
 import kr.co.vividnext.sodalive.content.order.QOrder.order
 import kr.co.vividnext.sodalive.content.theme.QAudioContentTheme.audioContentTheme
+import kr.co.vividnext.sodalive.content.translation.ContentTranslationPayload
 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.creator.admin.content.series.Series
@@ -33,11 +34,29 @@ class RankingRepository(
     @Value("\${cloud.aws.cloud-front.host}")
     private val imageHost: String
 ) {
-    fun getCreatorRankings(): List<Member> {
+    fun getCreatorRankings(memberId: Long? = null): List<Member> {
-        return queryFactory
+        val blockMemberCondition = if (memberId != null) {
+            blockMember.member.id.eq(member.id)
+                .and(blockMember.isActive.isTrue)
+                .and(blockMember.blockedMember.id.eq(memberId))
+        } else {
+            null
+        }
+
+        var select = queryFactory
             .select(member)
             .from(creatorRanking)
             .innerJoin(creatorRanking.member, member)
+
+        if (memberId != null) {
+            select = select.leftJoin(blockMember).on(blockMemberCondition)
+        }
+
+        if (memberId != null) {
+            select = select.where(blockMember.id.isNull)
+        }
+
+        return select
             .orderBy(creatorRanking.ranking.asc())
             .fetch()
     }
@@ -51,7 +70,8 @@ class RankingRepository(
         offset: Long,
         limit: Long,
         sortType: String,
-        theme: String = ""
+        theme: String = "",
+        locale: String? = null
     ): List<GetAudioContentRankingItem> {
         val blockMemberCondition = if (memberId != null) {
             blockMember.member.id.eq(member.id)
@@ -61,6 +81,8 @@ class RankingRepository(
             null
         }
 
+        val contentTranslation = kr.co.vividnext.sodalive.content.translation.QContentTranslation.contentTranslation
+
         var where = audioContent.isActive.isTrue
             .and(audioContent.member.isActive.isTrue)
             .and(audioContent.member.isNotNull)
@@ -91,20 +113,27 @@ class RankingRepository(
             where = where.and(audioContentTheme.theme.eq(theme))
         }
 
+        val coverImageUrl = audioContent.coverImage.prepend("/").prepend(imageHost)
+        val creatorProfileImageUrl = member.profileImage.prepend("/").prepend(imageHost)
+        val payloadExpression = if (locale != null) {
+            contentTranslation.renderedPayload
+        } else {
+            Expressions.nullExpression(ContentTranslationPayload::class.java)
+        }
+
         var select = queryFactory
             .select(
-                QGetAudioContentRankingItem(
                 audioContent.id,
                 audioContent.title,
-                    audioContent.coverImage.prepend("/").prepend(imageHost),
+                payloadExpression,
+                coverImageUrl,
                 audioContentTheme.theme,
                 audioContent.price,
                 audioContent.duration,
                 member.id,
                 member.nickname,
                 audioContent.isPointAvailable,
-                    member.profileImage.prepend("/").prepend(imageHost)
+                creatorProfileImageUrl
-                )
             )
 
         select = when (sortType) {
@@ -149,6 +178,11 @@ class RankingRepository(
             }
         }
 
+        if (locale != null) {
+            select = select.leftJoin(contentTranslation)
+                .on(contentTranslation.contentId.eq(audioContent.id).and(contentTranslation.locale.eq(locale)))
+        }
+
         if (memberId != null) {
             where = where.and(blockMember.id.isNull)
             select = select.leftJoin(blockMember).on(blockMemberCondition)
@@ -217,10 +251,38 @@ class RankingRepository(
             }
         }
 
-        return select
+        val results = select
             .offset(offset)
             .limit(limit)
             .fetch()
+
+        return results.map { row ->
+            val contentId = row.get(audioContent.id)!!
+            val originTitle = row.get(audioContent.title)!!
+            val payload = row.get(payloadExpression)
+            val translatedTitle = payload?.title
+            val imageUrl = row.get(coverImageUrl)!!
+            val themeStr = row.get(audioContentTheme.theme) ?: ""
+            val price = row.get(audioContent.price) ?: 0
+            val duration = row.get(audioContent.duration) ?: ""
+            val creatorId = row.get(member.id)!!
+            val creatorNickname = row.get(member.nickname)!!
+            val isPointAvailable = row.get(audioContent.isPointAvailable) ?: false
+            val creatorProfileImageUrlValue = row.get(creatorProfileImageUrl)!!
+
+            GetAudioContentRankingItem(
+                contentId = contentId,
+                title = if (translatedTitle.isNullOrBlank()) originTitle else translatedTitle,
+                coverImageUrl = imageUrl,
+                themeStr = themeStr,
+                price = price,
+                duration = duration,
+                creatorId = creatorId,
+                creatorNickname = creatorNickname,
+                isPointAvailable = isPointAvailable,
+                creatorProfileImageUrl = creatorProfileImageUrlValue
+            )
+        }
     }
 
     fun getSeriesRanking(

src/main/kotlin/kr/co/vividnext/sodalive/rank/RankingService.kt

@@ -9,7 +9,7 @@ import kr.co.vividnext.sodalive.creator.admin.content.series.Series
 import kr.co.vividnext.sodalive.creator.admin.content.series.SeriesPublishedDaysOfWeek
 import kr.co.vividnext.sodalive.creator.admin.content.series.SeriesState
 import kr.co.vividnext.sodalive.explorer.GetExplorerSectionResponse
-import kr.co.vividnext.sodalive.member.MemberService
+import kr.co.vividnext.sodalive.i18n.LangContext
 import org.springframework.beans.factory.annotation.Value
 import org.springframework.stereotype.Service
 import java.time.LocalDateTime
@@ -17,22 +17,15 @@ import java.time.LocalDateTime
 @Service
 class RankingService(
     private val repository: RankingRepository,
-    private val memberService: MemberService,
     private val seriesContentRepository: ContentSeriesContentRepository,
+    private val langContext: LangContext,
 
     @Value("\${cloud.aws.cloud-front.host}")
     private val imageHost: String
 ) {
     fun getCreatorRanking(memberId: Long?, rankingDate: String): GetExplorerSectionResponse {
         val creatorRankings = repository
-            .getCreatorRankings()
+            .getCreatorRankings(memberId = memberId)
-            .filter {
-                if (memberId != null) {
-                    !memberService.isBlocked(blockedMemberId = memberId, memberId = it.id!!)
-                } else {
-                    true
-                }
-            }
             .map { it.toExplorerSectionCreator(imageHost) }
 
         return GetExplorerSectionResponse(
@@ -68,7 +61,8 @@ class RankingService(
                 offset = offset,
                 limit = limit,
                 sortType = sortType,
-                theme = theme
+                theme = theme,
+                locale = langContext.lang.code
             )
             loopCount++
         } while (contentList.size < 5 && loopCount < 5)