diff --git a/src/main/java/icu/samnyan/aqua/api/model/resp/sega/maimai2/external/Maimai2DataExport.java b/src/main/java/icu/samnyan/aqua/api/model/resp/sega/maimai2/external/Maimai2DataExport.java
index 391d1ed2..f3b10bc1 100644
--- a/src/main/java/icu/samnyan/aqua/api/model/resp/sega/maimai2/external/Maimai2DataExport.java
+++ b/src/main/java/icu/samnyan/aqua/api/model/resp/sega/maimai2/external/Maimai2DataExport.java
@@ -5,6 +5,8 @@ import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
 
+import java.lang.reflect.Field;
+import java.util.Arrays;
 import java.util.List;
 
 /**
@@ -14,24 +16,22 @@ import java.util.List;
 @AllArgsConstructor
 @NoArgsConstructor
 public class Maimai2DataExport {
-    private String gameId = "SDEZ";
-    private UserDetail userData;
-    private UserExtend userExtend;
-    private UserOption userOption;
-    private List<MapEncountNpc> mapEncountNpcList;
-    private List<UserAct> userActList;
-    private List<UserCharacter> userCharacterList;
-    private List<UserCharge> userChargeList;
-    private List<UserCourse> userCourseList;
-    private List<UserFavorite> userFavoriteList;
-    private List<UserFriendSeasonRanking> userFriendSeasonRankingList;
-    private List<UserGeneralData> userGeneralDataList;
-    private List<UserGhost> userGhostList;
-    private List<UserItem> userItemList;
-    private List<UserLoginBonus> userLoginBonusList;
-    private List<UserMap> userMapList;
-    private List<UserMusicDetail> userMusicDetailList;
-    private List<UserPlaylog> userPlaylogList;
-    private List<UserRate> userRateList;
-    private UserUdemae userUdemae;
+    public String gameId = "SDEZ";
+    public UserDetail userData;
+    public UserExtend userExtend;
+    public UserOption userOption;
+    public List<MapEncountNpc> mapEncountNpcList;
+    public List<UserAct> userActList;
+    public List<UserCharacter> userCharacterList;
+    public List<UserCharge> userChargeList;
+    public List<UserCourse> userCourseList;
+    public List<UserFavorite> userFavoriteList;
+    public List<UserFriendSeasonRanking> userFriendSeasonRankingList;
+    public List<UserGeneralData> userGeneralDataList;
+    public List<UserItem> userItemList;
+    public List<UserLoginBonus> userLoginBonusList;
+    public List<UserMap> userMapList;
+    public List<UserMusicDetail> userMusicDetailList;
+    public List<UserPlaylog> userPlaylogList;
+    public UserUdemae userUdemae;
 }
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 645ad85a..c9f07221 100644
--- a/src/main/java/icu/samnyan/aqua/net/db/AquaNetUser.kt
+++ b/src/main/java/icu/samnyan/aqua/net/db/AquaNetUser.kt
@@ -2,6 +2,7 @@ package icu.samnyan.aqua.net.db
 
 import com.fasterxml.jackson.annotation.JsonIgnore
 import ext.*
+import icu.samnyan.aqua.net.components.JWT
 import icu.samnyan.aqua.sega.allnet.AllNetProps
 import icu.samnyan.aqua.sega.allnet.KeyChipRepo
 import icu.samnyan.aqua.sega.allnet.KeychipSession
@@ -112,7 +113,8 @@ class AquaUserServices(
     val cardRepo: CardRepository,
     val hasher: PasswordEncoder,
     val keyChipRepo: KeyChipRepo,
-    val allNetProps: AllNetProps
+    val allNetProps: AllNetProps,
+    val jwt: JWT
 ) {
     companion object {
         val SETTING_FIELDS = AquaUserServices::class.functions
diff --git a/src/main/java/icu/samnyan/aqua/net/games/Maimai2.kt b/src/main/java/icu/samnyan/aqua/net/games/Maimai2.kt
index 585df105..9d3b16a0 100644
--- a/src/main/java/icu/samnyan/aqua/net/games/Maimai2.kt
+++ b/src/main/java/icu/samnyan/aqua/net/games/Maimai2.kt
@@ -3,13 +3,17 @@ package icu.samnyan.aqua.net.games
 import ext.API
 import ext.RP
 import ext.Str
+import ext.minus
+import icu.samnyan.aqua.api.model.resp.sega.maimai2.external.Maimai2DataExport
 import icu.samnyan.aqua.net.db.AquaUserServices
 import icu.samnyan.aqua.net.utils.*
 import icu.samnyan.aqua.sega.maimai2.model.*
-import icu.samnyan.aqua.sega.maimai2.model.Mai2UserDataRepo
-import icu.samnyan.aqua.sega.maimai2.model.Mai2UserGeneralDataRepo
-import icu.samnyan.aqua.sega.maimai2.model.Mai2UserPlaylogRepo
 import org.springframework.web.bind.annotation.RestController
+import java.lang.reflect.Field
+import java.util.*
+import kotlin.reflect.full.declaredMembers
+import kotlin.reflect.full.isSubclassOf
+import kotlin.reflect.jvm.jvmErasure
 
 @RestController
 @API("api/v2/game/mai2")
@@ -17,7 +21,8 @@ class Maimai2(
     override val us: AquaUserServices,
     override val playlogRepo: Mai2UserPlaylogRepo,
     override val userDataRepo: Mai2UserDataRepo,
-    val userGeneralDataRepository: Mai2UserGeneralDataRepo
+    val userGeneralDataRepository: Mai2UserGeneralDataRepo,
+    val repos: Mai2Repos
 ): GameApiController("mai2")
 {
     override suspend fun trend(@RP username: Str): List<TrendOut> = us.cardByName(username) { card ->
@@ -39,4 +44,27 @@ class Maimai2(
 
         genericUserSummary(card, ratingComposition)
     }
+
+    // Use reflection to get all properties in Mai2Repos with matching names in Maimai2DataExport
+    var exportFields: Map<Field, UserLinked<*>> = listOf(*Maimai2DataExport::class.java.declaredFields)
+        .filter { it.name !in arrayOf("gameId", "userData") }
+        .associateWith { Mai2Repos::class.declaredMembers
+            .filter { f -> f.returnType.jvmErasure.isSubclassOf(UserLinked::class) }
+            .firstOrNull { f -> f.name == it.name || f.name == it.name.replace("List", "") }
+            ?.call(repos) as UserLinked<*>? ?: error("No matching field found for ${it.name}")
+        }
+
+    @API("export")
+    fun exportAllUserData(@RP token: Str) = us.jwt.auth(token) { u ->
+        try {
+            Maimai2DataExport().apply {
+                gameId = "SDEZ"
+                userData = repos.userData.findByCard(u.ghostCard) ?: (404 - "User not found")
+                exportFields.forEach { (f, u) ->
+                    f.set(this, if (f.type == List::class.java) u.findByUser(userData)
+                        else u.findSingleByUser(userData).orElse(null))
+                }
+            }
+        } catch (e: Exception) { 500 - "Error during data export. Reason: ${e.message}" }
+    }
 }
\ No newline at end of file
diff --git a/src/main/java/icu/samnyan/aqua/sega/chusan/model/Repos.kt b/src/main/java/icu/samnyan/aqua/sega/chusan/model/Repos.kt
index 8cd606ac..576613b0 100644
--- a/src/main/java/icu/samnyan/aqua/sega/chusan/model/Repos.kt
+++ b/src/main/java/icu/samnyan/aqua/sega/chusan/model/Repos.kt
@@ -11,6 +11,7 @@ import org.springframework.data.domain.Pageable
 import org.springframework.data.jpa.repository.JpaRepository
 import org.springframework.data.jpa.repository.Query
 import org.springframework.data.repository.NoRepositoryBean
+import org.springframework.stereotype.Component
 import java.util.*
 
 
@@ -154,4 +155,37 @@ interface Chu3GameNamePlateRepo : JpaRepository<NamePlate, Long>
 
 interface Chu3GameSystemVoiceRepo : JpaRepository<SystemVoice, Long>
 
-interface Chu3GameTrophyRepo : JpaRepository<Trophy, Long>
\ No newline at end of file
+interface Chu3GameTrophyRepo : JpaRepository<Trophy, Long>
+
+@Component
+class Chu3Repos(
+    val userLoginBonus: Chu3UserLoginBonusRepo,
+    val userActivity: Chu3UserActivityRepo,
+    val userCardPrintState: Chu3UserCardPrintStateRepo,
+    val userCharacter: Chu3UserCharacterRepo,
+    val userCharge: Chu3UserChargeRepo,
+    val userCourse: Chu3UserCourseRepo,
+    val userData: Chu3UserDataRepo,
+    val userDuel: Chu3UserDuelRepo,
+    val userGacha: Chu3UserGachaRepo,
+    val userGameOption: Chu3UserGameOptionRepo,
+    val userGeneralData: Chu3UserGeneralDataRepo,
+    val userItem: Chu3UserItemRepo,
+    val userMapArea: Chu3UserMapAreaRepo,
+    val userMusicDetail: Chu3UserMusicDetailRepo,
+    val userPlaylog: Chu3UserPlaylogRepo,
+    val gameAvatarAcc: Chu3GameAvatarAccRepo,
+    val gameCharacter: Chu3GameCharacterRepo,
+    val gameCharge: Chu3GameChargeRepo,
+    val gameEvent: Chu3GameEventRepo,
+    val gameFrame: Chu3GameFrameRepo,
+    val gameGachaCard: Chu3GameGachaCardRepo,
+    val gameGacha: Chu3GameGachaRepo,
+    val gameLoginBonusPresets: Chu3GameLoginBonusPresetsRepo,
+    val gameLoginBonus: Chu3GameLoginBonusRepo,
+    val gameMapIcon: Chu3GameMapIconRepo,
+    val gameMusic: Chu3GameMusicRepo,
+    val gameNamePlate: Chu3GameNamePlateRepo,
+    val gameSystemVoice: Chu3GameSystemVoiceRepo,
+    val gameTrophy: Chu3GameTrophyRepo
+)
\ No newline at end of file
diff --git a/src/main/java/icu/samnyan/aqua/sega/maimai2/handler/impl/UpsertUserAllHandler.java b/src/main/java/icu/samnyan/aqua/sega/maimai2/handler/impl/UpsertUserAllHandler.java
index c111fb51..6de57d22 100644
--- a/src/main/java/icu/samnyan/aqua/sega/maimai2/handler/impl/UpsertUserAllHandler.java
+++ b/src/main/java/icu/samnyan/aqua/sega/maimai2/handler/impl/UpsertUserAllHandler.java
@@ -103,7 +103,7 @@ public class UpsertUserAllHandler implements BaseHandler {
         if (userAll.getUserExtend() != null) {
             UserExtend newUserExtend = userAll.getUserExtend().get(0);
 
-            Optional<UserExtend> userExtendOptional = userExtendRepository.findByUser(newUserData);
+            Optional<UserExtend> userExtendOptional = userExtendRepository.findSingleByUser(newUserData);
             UserExtend userExtend = userExtendOptional.orElseGet(() -> new UserExtend(newUserData));
 
             newUserExtend.setId(userExtend.getId());
@@ -116,7 +116,7 @@ public class UpsertUserAllHandler implements BaseHandler {
         if (userAll.getUserOption() != null) {
             UserOption newUserOption = userAll.getUserOption().get(0);
 
-            Optional<UserOption> userOptionOptional = userOptionRepository.findByUser(newUserData);
+            Optional<UserOption> userOptionOptional = userOptionRepository.findSingleByUser(newUserData);
             UserOption userOption = userOptionOptional.orElseGet(() -> new UserOption(newUserData));
 
             newUserOption.setId(userOption.getId());
@@ -185,7 +185,7 @@ public class UpsertUserAllHandler implements BaseHandler {
             //Udemae
             UserUdemae newUserUdemae = userRating.getUdemae();
 
-            Optional<UserUdemae> udemaeOptional = userUdemaeRepository.findByUser(newUserData);
+            Optional<UserUdemae> udemaeOptional = userUdemaeRepository.findSingleByUser(newUserData);
             UserUdemae userUdemae = udemaeOptional.orElseGet(() -> new UserUdemae(newUserData));
 
             newUserUdemae.setId(userUdemae.getId());
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 03480672..3b6659fb 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
@@ -13,12 +13,14 @@ import org.springframework.data.domain.Page
 import org.springframework.data.domain.Pageable
 import org.springframework.data.jpa.repository.JpaRepository
 import org.springframework.data.repository.NoRepositoryBean
+import org.springframework.stereotype.Component
 import org.springframework.transaction.annotation.Transactional
 import java.util.*
 
 @NoRepositoryBean
 interface UserLinked<T>: JpaRepository<T, Long> {
-    fun findByUser(user: UserDetail): Optional<T>
+    fun findByUser(user: UserDetail): List<T>
+    fun findSingleByUser(user: UserDetail): Optional<T>
     fun findByUser_Card_ExtId(userId: Long): List<T>
     fun findByUser_Card_ExtId(userId: Long, page: Pageable): Page<T>
     fun findSingleByUser_Card_ExtId(userId: Long): Optional<T>
@@ -109,4 +111,30 @@ interface Mai2GameEventRepo : JpaRepository<GameEvent, Int> {
     fun findByTypeAndEnable(type: Int, enable: Boolean): List<GameEvent>
 }
 
-interface Mai2GameSellingCardRepo : JpaRepository<GameSellingCard, Long>
\ No newline at end of file
+interface Mai2GameSellingCardRepo : JpaRepository<GameSellingCard, Long>
+
+@Component
+class Mai2Repos(
+    val mapEncountNpc: Mai2MapEncountNpcRepo,
+    val userAct: Mai2UserActRepo,
+    val userCard: Mai2UserCardRepo,
+    val userCharacter: Mai2UserCharacterRepo,
+    val userCharge: Mai2UserChargeRepo,
+    val userCourse: Mai2UserCourseRepo,
+    val userData: Mai2UserDataRepo,
+    val userExtend: Mai2UserExtendRepo,
+    val userFavorite: Mai2UserFavoriteRepo,
+    val userFriendSeasonRanking: Mai2UserFriendSeasonRankingRepo,
+    val userGeneralData: Mai2UserGeneralDataRepo,
+    val userItem: Mai2UserItemRepo,
+    val userLoginBonus: Mai2UserLoginBonusRepo,
+    val userMap: Mai2UserMapRepo,
+    val userMusicDetail: Mai2UserMusicDetailRepo,
+    val userOption: Mai2UserOptionRepo,
+    val userPlaylog: Mai2UserPlaylogRepo,
+    val userPrintDetail: Mai2UserPrintDetailRepo,
+    val userUdemae: Mai2UserUdemaeRepo,
+    val gameCharge: Mai2GameChargeRepo,
+    val gameEvent: Mai2GameEventRepo,
+    val gameSellingCard: Mai2GameSellingCardRepo
+)