diff --git a/AquaNet/src/components/settings/UserSettings.svelte b/AquaNet/src/components/settings/UserSettings.svelte
index 29faee9f..5968223b 100644
--- a/AquaNet/src/components/settings/UserSettings.svelte
+++ b/AquaNet/src/components/settings/UserSettings.svelte
@@ -1,10 +1,10 @@
 <script lang="ts">
   import { slide, fade } from "svelte/transition";
-  import type { AquaNetUser } from "../../libs/generalTypes";
+  import type { AquaNetUser, ConfirmProps } from "../../libs/generalTypes";
   import { CARD, USER } from "../../libs/sdk";
   import StatusOverlays from "../../components/StatusOverlays.svelte";
   import Icon from "@iconify/svelte";
-  import { pfp } from "../../libs/ui";
+  import { download, pfp } from "../../libs/ui";
   import { t, ts } from "../../libs/i18n";
   import Cropper from "svelte-easy-crop";
 
@@ -12,6 +12,7 @@
   let error: string;
   let submitting = ""
   let loading = false;
+  let confirm: ConfirmProps | null = null;
 
   const profileFields = [
     [ 'displayName', t('settings.profile.name') ],
@@ -97,11 +98,41 @@
     location.href = "/";
   }
 
+  function requestAccountDeletion() {
+    if (submitting) return;
+    confirm = {
+      title: t('settings.profile.delete-confirm-title'),
+      message: t('settings.profile.delete-confirm-message'),
+      dangerous: true,
+      cancel: () => confirm = null,
+      confirm: deleteAccount,
+    };
+  }
+
+  async function deleteAccount() {
+    if (submitting) return;
+    submitting = "deleteAccount";
+
+    try {
+      const data = await USER.exportAccountData();
+      download(
+        JSON.stringify(data, null, 2),
+        `AquaDX_account_export_${me.username}.json`,
+      );
+      await USER.deleteAccount();
+      localStorage.removeItem("token");
+      location.href = "/";
+    } catch (e) {
+      error = (e as Error).message;
+      submitting = "";
+    }
+  }
+
   const passwordAction = (node: HTMLInputElement, whether: boolean) => {
     if (whether) node.type = 'password'
   }
 </script>
-<StatusOverlays {error} loading={!!submitting || loading} />
+<StatusOverlays bind:confirm={confirm} {error} loading={!!submitting || loading} />
 {#if !submitting && !error && me}
   <div>
     <div class="fields">
@@ -171,6 +202,16 @@
             <button on:click={logOut}>{ts(`settings.profile.logout`)}</button>
         </div>
       </div>
+      <div class="field danger-zone m-t">
+        <span class="name">{t('settings.profile.delete-title')}</span>
+        <span class="desc">{t('settings.profile.delete-description')}</span>
+        <div>
+          <button class="error" on:click={requestAccountDeletion}>
+            <Icon icon="tabler:trash-x-filled" />
+            {t('settings.profile.delete')}
+          </button>
+        </div>
+      </div>
     </div>
   </div>
 {/if}
@@ -234,6 +275,19 @@
       object-fit: cover
       aspect-ratio: 1
 
+  .danger-zone
+    margin-top: 1.5rem
+    padding-top: 1.5rem
+    border-top: 1px solid vars.$ov-lighter
+
+    .desc
+      opacity: 0.6
+
+    button
+      display: flex
+      align-items: center
+      gap: 0.5rem
+
 
 
   .cropper-container
diff --git a/AquaNet/src/libs/i18n/en_ref.ts b/AquaNet/src/libs/i18n/en_ref.ts
index 11b296fb..8e115ae9 100644
--- a/AquaNet/src/libs/i18n/en_ref.ts
+++ b/AquaNet/src/libs/i18n/en_ref.ts
@@ -274,6 +274,11 @@ export const EN_REF_SETTINGS = {
   'settings.profile.unset': 'Unset',
   'settings.profile.logout': 'Log out',
   'settings.profile.unchanged': 'Unchanged',
+  'settings.profile.delete-title': 'Delete account',
+  'settings.profile.delete-description': 'Download a backup, then permanently delete your account and all associated game data.',
+  'settings.profile.delete': 'Delete account',
+  'settings.profile.delete-confirm-title': 'Permanently delete your account?',
+  'settings.profile.delete-confirm-message': 'A backup of all game data will be downloaded first. After that, your account and all associated game data will be permanently deleted. This cannot be undone.',
   'settings.export': 'Export Player Data',
   'settings.batchManualExport': "Export in Batch Manual (for Tachi)",
   'settings.cabNotice': "These settings only apply for your keychip. If you're playing on someone else's setup, please ask them to change these settings.",
diff --git a/AquaNet/src/libs/i18n/zh.ts b/AquaNet/src/libs/i18n/zh.ts
index ca416d36..33b8555b 100644
--- a/AquaNet/src/libs/i18n/zh.ts
+++ b/AquaNet/src/libs/i18n/zh.ts
@@ -287,6 +287,11 @@ const zhSettings: typeof EN_REF_SETTINGS = {
   'settings.profile.unset': '未设置',
   'settings.profile.logout': '登出',
   'settings.profile.unchanged': '未更改',
+  'settings.profile.delete-title': '删除账户',
+  'settings.profile.delete-description': '下载备份后，永久删除您的账户及所有关联游戏数据。',
+  'settings.profile.delete': '删除账户',
+  'settings.profile.delete-confirm-title': '永久删除您的账户？',
+  'settings.profile.delete-confirm-message': '系统会先下载所有游戏数据的备份，然后永久删除您的账户及所有关联游戏数据。此操作无法撤销。',
   'settings.export': '导出玩家数据',
   'settings.batchManualExport': "导出 Batch Manual 格式（用于 Tachi）",
   'settings.cabNotice': '注意：下面这些设置只会影响你自己的机器,如果你是在其他人的机器上玩的话,请联系机主来改设置',
diff --git a/AquaNet/src/libs/sdk.ts b/AquaNet/src/libs/sdk.ts
index 7b1e41da..a931fa3e 100644
--- a/AquaNet/src/libs/sdk.ts
+++ b/AquaNet/src/libs/sdk.ts
@@ -203,6 +203,10 @@ export const USER = {
   ensureLoggedIn,
   changeRegion: (regionId: number) =>
     post('/api/v2/user/change-region', { regionId }),
+  exportAccountData: (): Promise<Record<string, any>> =>
+    post('/api/v2/user/export-data'),
+  deleteAccount: () =>
+    post('/api/v2/user/delete-account'),
 }
 
 export const USERBOX = {
diff --git a/src/main/java/icu/samnyan/aqua/net/AccountController.kt b/src/main/java/icu/samnyan/aqua/net/AccountController.kt
new file mode 100644
index 00000000..80f049c1
--- /dev/null
+++ b/src/main/java/icu/samnyan/aqua/net/AccountController.kt
@@ -0,0 +1,312 @@
+package icu.samnyan.aqua.net
+
+import ext.*
+import icu.samnyan.aqua.net.components.JWT
+import icu.samnyan.aqua.net.db.*
+import icu.samnyan.aqua.net.utils.PathProps
+import icu.samnyan.aqua.net.utils.SUCCESS
+import icu.samnyan.aqua.sega.allnet.KeychipSessionRepo
+import icu.samnyan.aqua.sega.allnet.UserKeychipRepo
+import icu.samnyan.aqua.sega.chusan.model.Chu3Repos
+import icu.samnyan.aqua.sega.diva.DivaRepos
+import icu.samnyan.aqua.sega.diva.model.db.userdata.PlayerProfile
+import icu.samnyan.aqua.sega.general.dao.CardRepository
+import icu.samnyan.aqua.sega.general.model.Card
+import icu.samnyan.aqua.sega.maimai2.model.Mai2Repos
+import icu.samnyan.aqua.sega.ongeki.OngekiUserRepos
+import icu.samnyan.aqua.sega.wacca.model.db.WaccaRepos
+import jakarta.transaction.Transactional
+import org.springframework.stereotype.Service
+import org.springframework.web.bind.annotation.RestController
+import java.nio.file.Files
+import java.nio.file.Path
+import java.time.Instant
+import kotlin.io.path.Path
+import kotlin.io.path.deleteIfExists
+import kotlin.io.path.exists
+import kotlin.io.path.name
+
+data class AccountGameDataExport(
+    val formatVersion: Int = 1,
+    val exportedAt: Instant = Instant.now(),
+    val username: String,
+    val gameOptions: AquaGameOptions?,
+    val games: Map<String, Any>,
+)
+
+data class AccountFileCleanup(
+    val profilePicture: String?,
+    val gameUserId: Long,
+    val divaScreenshots: List<String>,
+)
+
+@RestController
+@API("/api/v2/user")
+class AccountController(
+    val jwt: JWT,
+    val accountData: AccountDataService,
+) {
+    @API("/export-data")
+    @Doc("Export all game data associated with the current user's account.", "All account game data")
+    fun exportData(@RP token: Str) = jwt.auth(token) { accountData.export(it) }
+
+    @API("/delete-account")
+    @Doc("Permanently delete the current user's account and all associated game data.", "Success message")
+    fun deleteAccount(@RP token: Str) = jwt.auth(token) { user ->
+        val cleanup = accountData.deleteDatabaseData(user.auId)
+        accountData.deleteUploadedFiles(cleanup)
+        SUCCESS
+    }
+}
+
+@Service
+class AccountDataService(
+    val userRepo: AquaNetUserRepo,
+    val cardRepo: CardRepository,
+    val gameOptionsRepo: AquaGameOptionsRepo,
+    val sessionRepo: SessionTokenRepo,
+    val confirmationRepo: EmailConfirmationRepo,
+    val resetPasswordRepo: ResetPasswordRepo,
+    val userKeychipRepo: UserKeychipRepo,
+    val keychipSessionRepo: KeychipSessionRepo,
+    val mai2: Mai2Repos,
+    val chu3: Chu3Repos,
+    val ongeki: OngekiUserRepos,
+    val wacca: WaccaRepos,
+    val diva: DivaRepos,
+    val paths: PathProps,
+) {
+    companion object {
+        val log = logger()
+    }
+
+    fun export(user: AquaNetUser): AccountGameDataExport {
+        val card = user.ghostCard
+        val games = linkedMapOf<String, Any>()
+
+        exportMai2(card)?.let { games["mai2"] = it }
+        exportChu3(card)?.let { games["chu3"] = it }
+        exportOngeki(card)?.let { games["ongeki"] = it }
+        exportWacca(card)?.let { games["wacca"] = it }
+        exportDiva(card)?.let { games["diva"] = it }
+
+        log.info("Exported all account game data for user ${user.auId}")
+        return AccountGameDataExport(username = user.username, gameOptions = user.gameOptions, games = games)
+    }
+
+    private fun exportMai2(card: Card): Map<String, Any>? {
+        val user = mai2.userData.findByCard(card) ?: return null
+        return linkedMapOf(
+            "gameId" to "SDEZ",
+            "userData" to user,
+            "mapEncountNpcList" to mai2.mapEncountNpc.findByUser(user),
+            "userActList" to mai2.userAct.findByUser(user),
+            "userCardList" to mai2.userCard.findByUser(user),
+            "userCharacterList" to mai2.userCharacter.findByUser(user),
+            "userChargeList" to mai2.userCharge.findByUser(user),
+            "userCourseList" to mai2.userCourse.findByUser(user),
+            "userExtendList" to mai2.userExtend.findByUser(user),
+            "userFavoriteList" to mai2.userFavorite.findByUser(user),
+            "userFriendSeasonRankingList" to mai2.userFriendSeasonRanking.findByUser(user),
+            "userGeneralDataList" to mai2.userGeneralData.findByUser(user),
+            "userItemList" to mai2.userItem.findByUser(user),
+            "userLoginBonusList" to mai2.userLoginBonus.findByUser(user),
+            "userMapList" to mai2.userMap.findByUser(user),
+            "userMusicDetailList" to mai2.userMusicDetail.findByUser(user),
+            "userOptionList" to mai2.userOption.findByUser(user),
+            "userPlaylogList" to mai2.userPlaylog.findByUser(user),
+            "userPrintDetailList" to mai2.userPrintDetail.findByUser(user),
+            "userUdemaeList" to mai2.userUdemae.findByUser(user),
+            "userKaleidxScopeList" to mai2.userKaleidx.findByUser(user),
+            "userIntimateList" to mai2.userIntimate.findByUser(user),
+            "userRegionsList" to mai2.userRegions.findByUser(user),
+        )
+    }
+
+    private fun exportChu3(card: Card): Map<String, Any>? {
+        val user = chu3.userData.findByCard(card) ?: return null
+        return linkedMapOf(
+            "gameId" to "SDHD",
+            "userData" to user,
+            "userActivityList" to chu3.userActivity.findByUser(user),
+            "userCardPrintStateList" to chu3.userCardPrintState.findByUser(user),
+            "userCharacterList" to chu3.userCharacter.findByUser(user),
+            "userChargeList" to chu3.userCharge.findByUser(user),
+            "userCourseList" to chu3.userCourse.findByUser(user),
+            "userDuelList" to chu3.userDuel.findByUser(user),
+            "userGachaList" to chu3.userGacha.findByUser(user),
+            "userGameOptionList" to chu3.userGameOption.findByUser(user),
+            "userGeneralDataList" to chu3.userGeneralData.findByUser(user),
+            "userItemList" to chu3.userItem.findByUser(user),
+            "userMapList" to chu3.userMap.findByUser(user),
+            "userMusicDetailList" to chu3.userMusicDetail.findByUser(user),
+            "userPlaylogList" to chu3.userPlaylog.findByUser(user),
+            "userRegionsList" to chu3.userRegions.findByUser(user),
+            "userCMissionList" to chu3.userCMission.findByUser(user),
+            "userCMissionProgressList" to chu3.userCMissionProgress.findByUser(user),
+            "netBattleLogList" to chu3.netBattleLog.findByUser(user),
+            "userMiscList" to chu3.userMisc.findByUser(user),
+            "userChallengeList" to chu3.userChallenge.findByUser(user),
+            "userLinkedVerseList" to chu3.userLinkedVerse.findByUser(user),
+            "userMateList" to chu3.userMate.findByUser(user),
+            "userVoteList" to chu3.userVote.findByUser(user),
+            "userLoginBonusList" to chu3.userLoginBonus.findByUser(card.extId.toInt()),
+        )
+    }
+
+    private fun exportOngeki(card: Card): Map<String, Any>? {
+        val user = ongeki.data.findByCard(card) ?: return null
+        return linkedMapOf(
+            "gameId" to "SDDT",
+            "userData" to user,
+            "userActivityList" to ongeki.activity.findByUser(user),
+            "userBossList" to ongeki.boss.findByUser(user),
+            "userCardList" to ongeki.card.findByUser(user),
+            "userChapterList" to ongeki.chapter.findByUser(user),
+            "userCharacterList" to ongeki.character.findByUser(user),
+            "userDeckList" to ongeki.deck.findByUser(user),
+            "userEventMusicList" to ongeki.eventMusic.findByUser(user),
+            "userEventPointList" to ongeki.eventPoint.findByUser(user),
+            "userGeneralDataList" to ongeki.generalData.findByUser(user),
+            "userItemList" to ongeki.item.findByUser(user),
+            "userKopList" to ongeki.kop.findByUser(user),
+            "userLoginBonusList" to ongeki.loginBonus.findByUser(user),
+            "userMemoryChapterList" to ongeki.memoryChapter.findByUser(user),
+            "userMissionPointList" to ongeki.missionPoint.findByUser(user),
+            "userMusicDetailList" to ongeki.musicDetail.findByUser(user),
+            "userMusicItemList" to ongeki.musicItem.findByUser(user),
+            "userOptionList" to ongeki.option.findByUser(user),
+            "userPlaylogList" to ongeki.playlog.findByUser(user),
+            "userRivalList" to ongeki.rival.findByUser(user),
+            "userScenarioList" to ongeki.scenario.findByUser(user),
+            "userStoryList" to ongeki.story.findByUser(user),
+            "userTechCountList" to ongeki.techCount.findByUser(user),
+            "userTechEventList" to ongeki.techEvent.findByUser(user),
+            "userTradeItemList" to ongeki.tradeItem.findByUser(user),
+            "userTrainingRoomList" to ongeki.trainingRoom.findByUser(user),
+            "userEventMapList" to ongeki.eventMap.findByUser(user),
+            "userSkinList" to ongeki.skin.findByUser(user),
+            "userRegionsList" to ongeki.regions.findByUser(user),
+            "userGachaList" to ongeki.gacha.findByUser(user),
+        )
+    }
+
+    private fun exportWacca(card: Card): Map<String, Any>? {
+        val user = wacca.user.findByCard(card) ?: return null
+        return linkedMapOf(
+            "gameId" to "SDFE",
+            "userData" to user,
+            "userOptionList" to wacca.option.findByUser(user),
+            "userBingoList" to wacca.bingo.findByUser(user),
+            "userFriendList" to wacca.friend.findByUser(user).map {
+                mapOf("withUserId" to it.with.id, "isAccepted" to it.isAccepted)
+            },
+            "userGateList" to wacca.gate.findByUser(user),
+            "userItemList" to wacca.item.findByUser(user),
+            "userBestScoreList" to wacca.bestScore.findByUser(user),
+            "userPlaylogList" to wacca.playLog.findByUser(user),
+            "userStageUpList" to wacca.stageUp.findByUser(user),
+        )
+    }
+
+    private fun exportDiva(card: Card): Map<String, Any>? {
+        val profile = diva.profile.findByPdId(card.extId).orElse(null) ?: return null
+        return linkedMapOf(
+            "gameId" to "SBZV",
+            "userData" to profile,
+            "gameSession" to diva.gameSession.findByPdId(profile).orElse(null),
+            "playLogList" to diva.playLog.findByPdId(profile),
+            "playerContestList" to diva.contest.findByPdId(profile),
+            "playerCustomizeList" to diva.customize.findByPdId(profile),
+            "playerInventoryList" to diva.inventory.findByPdId(profile),
+            "playerModuleList" to diva.module.findByPdId(profile),
+            "playerPvCustomizeList" to diva.pvCustomize.findByPdId(profile),
+            "playerPvRecordList" to diva.pvRecord.findByPdId(profile),
+            "playerScreenShotList" to diva.screenShot.findByPdId(profile),
+        )
+    }
+
+    @Transactional
+    fun deleteDatabaseData(auId: Long): AccountFileCleanup {
+        val user = userRepo.findByAuId(auId) ?: (404 - "User not found")
+        val ghostCard = user.ghostCard
+        val divaScreenshots = deleteDiva(ghostCard)
+
+        mai2.userData.findByCard(ghostCard)?.let { mai2.userData.delete(it) }
+        chu3.userData.findByCard(ghostCard)?.let { chu3.userData.delete(it) }
+        ongeki.data.findByCard(ghostCard)?.let { ongeki.data.delete(it) }
+        wacca.user.findByCard(ghostCard)?.let { wacca.user.delete(it) }
+        chu3.userLoginBonus.deleteAll(chu3.userLoginBonus.findByUser(ghostCard.extId.toInt()))
+
+        sessionRepo.deleteAll(sessionRepo.findByAquaNetUserAuId(auId))
+        confirmationRepo.deleteAll(confirmationRepo.findByAquaNetUserAuId(auId))
+        resetPasswordRepo.deleteAll(resetPasswordRepo.findByAquaNetUserAuId(auId))
+        userKeychipRepo.deleteAll(userKeychipRepo.findAllByUserAuId(auId))
+        keychipSessionRepo.deleteAll(keychipSessionRepo.findAllByUserAuId(auId))
+
+        val linkedCards = (cardRepo.findAllByAquaUserAuId(auId) + ghostCard).distinctBy { it.id }
+        linkedCards.forEach { it.aquaUser = null }
+        cardRepo.saveAll(linkedCards)
+        cardRepo.flush()
+
+        user.cards.clear()
+        user.keychips.clear()
+        user.keychipSessions.clear()
+        val gameOptions = user.gameOptions
+        user.gameOptions = null
+
+        userRepo.delete(user)
+        userRepo.flush()
+        cardRepo.delete(ghostCard)
+        cardRepo.flush()
+        gameOptions?.let { gameOptionsRepo.delete(it) }
+
+        log.info("Deleted account and game data for user $auId")
+        return AccountFileCleanup(user.profilePicture, ghostCard.extId, divaScreenshots)
+    }
+
+    private fun deleteDiva(card: Card): List<String> {
+        val profile: PlayerProfile = diva.profile.findByPdId(card.extId).orElse(null) ?: return emptyList()
+        val screenshots = diva.screenShot.findByPdId(profile)
+
+        diva.gameSession.findByPdId(profile).ifPresent { diva.gameSession.delete(it) }
+        diva.playLog.deleteAll(diva.playLog.findByPdId(profile))
+        diva.contest.deleteAll(diva.contest.findByPdId(profile))
+        diva.customize.deleteAll(diva.customize.findByPdId(profile))
+        diva.inventory.deleteAll(diva.inventory.findByPdId(profile))
+        diva.module.deleteAll(diva.module.findByPdId(profile))
+        diva.pvCustomize.deleteAll(diva.pvCustomize.findByPdId(profile))
+        diva.pvRecord.deleteAll(diva.pvRecord.findByPdId(profile))
+        diva.screenShot.deleteAll(screenshots)
+        diva.profile.delete(profile)
+
+        return screenshots.map { it.fileName }
+    }
+
+    fun deleteUploadedFiles(cleanup: AccountFileCleanup) {
+        try {
+            cleanup.profilePicture
+                ?.takeIf { it.isNotBlank() && Path(it).name == it }
+                ?.let { (Path(paths.aquaNetPortrait) / it).deleteIfExists() }
+
+            deleteFilesStartingWith(Path(paths.mai2Portrait), "${cleanup.gameUserId}-")
+            deleteFilesStartingWith(Path(paths.mai2Plays), "${cleanup.gameUserId}-")
+            deleteFilesStartingWith(Path("data/tmp"), "${cleanup.gameUserId}-")
+            cleanup.divaScreenshots
+                .filter { Path(it).name == it }
+                .forEach { (Path("data") / it).deleteIfExists() }
+        } catch (e: Exception) {
+            // Database deletion has already committed. Leave a useful trail for administrators
+            // rather than turning a successful account deletion into a client-visible failure.
+            log.error("Failed to delete one or more uploaded files for deleted user ${cleanup.gameUserId}", e)
+        }
+    }
+
+    private fun deleteFilesStartingWith(directory: Path, prefix: String) {
+        if (!directory.exists()) return
+        Files.list(directory).use { files ->
+            files.filter { it.fileName.toString().startsWith(prefix) }
+                .forEach { it.deleteIfExists() }
+        }
+    }
+}
diff --git a/src/main/java/icu/samnyan/aqua/net/db/AquaNetUser.kt b/src/main/java/icu/samnyan/aqua/net/db/AquaNetUser.kt
index 8b4bd7c4..620bcbc8 100644
--- a/src/main/java/icu/samnyan/aqua/net/db/AquaNetUser.kt
+++ b/src/main/java/icu/samnyan/aqua/net/db/AquaNetUser.kt
@@ -69,12 +69,12 @@ class AquaNetUser(
     // Email confirmation
     var emailConfirmed: Boolean = false,
 
-    @OneToOne(cascade = [CascadeType.ALL])
+    @OneToOne(cascade = [CascadeType.PERSIST, CascadeType.MERGE])
     @JoinColumn(name = "ghostCard", unique = true, nullable = false)
     var ghostCard: Card = Card(),
 
     // One user can have multiple cards
-    @OneToMany(mappedBy = "aquaUser", cascade = [CascadeType.ALL])
+    @OneToMany(mappedBy = "aquaUser", cascade = [CascadeType.PERSIST, CascadeType.MERGE])
     var cards: MutableList<Card> = mutableListOf(),
 
     // Each user can have multiple keychips (if the user owns cabinets)
diff --git a/src/main/java/icu/samnyan/aqua/sega/allnet/KeychipSession.kt b/src/main/java/icu/samnyan/aqua/sega/allnet/KeychipSession.kt
index 143e55d8..62cb6646 100644
--- a/src/main/java/icu/samnyan/aqua/sega/allnet/KeychipSession.kt
+++ b/src/main/java/icu/samnyan/aqua/sega/allnet/KeychipSession.kt
@@ -45,12 +45,13 @@ fun genUrlSafeToken(length: Int): String {
 }
 
 @Repository("KeychipSessionRepo")
-interface KeychipSessionRepo : JpaRepository<KeychipSession, String> {
-    fun findByToken(token: String): KeychipSession?
-
-    @Transactional
-    fun deleteAllByLastUseBefore(expire: Long)
-}
+interface KeychipSessionRepo : JpaRepository<KeychipSession, String> {
+    fun findByToken(token: String): KeychipSession?
+    fun findAllByUserAuId(auId: Long): List<KeychipSession>
+
+    @Transactional
+    fun deleteAllByLastUseBefore(expire: Long)
+}
 
 @Service
 class KeychipSessionService(
diff --git a/src/main/java/icu/samnyan/aqua/sega/chusan/model/Chu3Repos.kt b/src/main/java/icu/samnyan/aqua/sega/chusan/model/Chu3Repos.kt
index b5944b52..8bc14641 100644
--- a/src/main/java/icu/samnyan/aqua/sega/chusan/model/Chu3Repos.kt
+++ b/src/main/java/icu/samnyan/aqua/sega/chusan/model/Chu3Repos.kt
@@ -27,8 +27,10 @@ interface Chu3UserLinked<T> : IUserRepo<Chu3UserData, T> {
 
 // This repo cannot be generalized as UserLinked because the entity stores user as an int
 // TODO: Find a way to generalize this
-interface Chu3UserLoginBonusRepo : JpaRepository<UserLoginBonus, Long> {
-    @Query(
+interface Chu3UserLoginBonusRepo : JpaRepository<UserLoginBonus, Long> {
+    fun findByUser(userId: Int): List<UserLoginBonus>
+
+    @Query(
         value = "select * from chusan_user_login_bonus where user = ?1 and version = ?2 and is_finished = ?3 order by last_update_date desc",
         nativeQuery = true
     )
diff --git a/src/main/java/icu/samnyan/aqua/sega/diva/DivaRepos.kt b/src/main/java/icu/samnyan/aqua/sega/diva/DivaRepos.kt
index c1d19284..d22776a1 100644
--- a/src/main/java/icu/samnyan/aqua/sega/diva/DivaRepos.kt
+++ b/src/main/java/icu/samnyan/aqua/sega/diva/DivaRepos.kt
@@ -67,6 +67,8 @@ interface PvEntryRepository : JpaRepository<PvEntry, Int> {
 }
 
 interface PlayerContestRepository : JpaRepository<PlayerContest, Long> {
+    fun findByPdId(pdId: PlayerProfile): MutableList<PlayerContest>
+
     fun findByPdIdAndContestId(pdId: PlayerProfile, contestId: Int): Optional<PlayerContest>
 
     fun findTop4ByPdIdOrderByLastUpdateTimeDesc(pdId: PlayerProfile): MutableList<PlayerContest>
@@ -86,6 +88,8 @@ interface PlayerCustomizeRepository : JpaRepository<PlayerCustomize, Long> {
 
 @Repository
 interface PlayerInventoryRepository : JpaRepository<PlayerInventory, Long> {
+    fun findByPdId(profile: PlayerProfile): MutableList<PlayerInventory>
+
     fun findByPdIdAndTypeAndValue(profile: PlayerProfile, type: String, value: String): Optional<PlayerInventory>
 }
 
@@ -96,6 +100,8 @@ interface PlayerProfileRepository : JpaRepository<PlayerProfile, Long> {
 
 @Repository
 interface PlayerPvCustomizeRepository : JpaRepository<PlayerPvCustomize, Long> {
+    fun findByPdId(profile: PlayerProfile): MutableList<PlayerPvCustomize>
+
     fun findByPdIdAndPvId(profile: PlayerProfile, pvId: Int): Optional<PlayerPvCustomize>
 }
 
@@ -139,12 +145,16 @@ interface PlayerPvRecordRepository : JpaRepository<PlayerPvRecord, Long> {
     ): MutableList<PlayerPvRecord>
 }
 
-interface PlayerScreenShotRepository : JpaRepository<PlayerScreenShot, Long>
+interface PlayerScreenShotRepository : JpaRepository<PlayerScreenShot, Long> {
+    fun findByPdId(profile: PlayerProfile): MutableList<PlayerScreenShot>
+}
 
 @Repository
-interface PlayLogRepository : JpaRepository<PlayLog, Long>
+interface PlayLogRepository : JpaRepository<PlayLog, Long> {
+    fun findByPdId(profile: PlayerProfile): MutableList<PlayLog>
+}
 
 @Repository
 interface PlayerModuleRepository : JpaRepository<PlayerModule, Long> {
     fun findByPdId(profile: PlayerProfile): MutableList<PlayerModule>
-}
\ No newline at end of file
+}
diff --git a/src/main/java/icu/samnyan/aqua/sega/general/dao/CardRepository.kt b/src/main/java/icu/samnyan/aqua/sega/general/dao/CardRepository.kt
index 538afe78..3307f061 100644
--- a/src/main/java/icu/samnyan/aqua/sega/general/dao/CardRepository.kt
+++ b/src/main/java/icu/samnyan/aqua/sega/general/dao/CardRepository.kt
@@ -11,4 +11,5 @@ import org.springframework.stereotype.Repository
 interface CardRepository : JpaRepository<Card, Long> {
     fun findByExtId(extId: Long): Card?
     fun findByLuid(luid: String): Card?
+    fun findAllByAquaUserAuId(auId: Long): List<Card>
 }
diff --git a/src/main/java/icu/samnyan/aqua/sega/maimai2/model/Repos.kt b/src/main/java/icu/samnyan/aqua/sega/maimai2/model/Repos.kt
index b828c7a1..028f8ba4 100644
--- a/src/main/java/icu/samnyan/aqua/sega/maimai2/model/Repos.kt
+++ b/src/main/java/icu/samnyan/aqua/sega/maimai2/model/Repos.kt
@@ -107,7 +107,9 @@ interface Mai2UserPlaylogRepo : GenericPlaylogRepo<Mai2UserPlaylog>, Mai2UserLin
     fun findByUserAndUserPlayDateAfter(user: Mai2UserDetail, userPlayDate: String): List<Mai2UserPlaylog>
 }
 
-interface Mai2UserPrintDetailRepo : JpaRepository<Mai2UserPrintDetail, Long>
+interface Mai2UserPrintDetailRepo : JpaRepository<Mai2UserPrintDetail, Long> {
+    fun findByUser(user: Mai2UserDetail): List<Mai2UserPrintDetail>
+}
 
 interface Mai2UserUdemaeRepo : Mai2UserLinked<Mai2UserUdemae>