diff --git a/src/main/java/icu/samnyan/aqua/api/controller/sega/game/chuni/v2/ApiChuniV2PlayerDataController.java b/src/main/java/icu/samnyan/aqua/api/controller/sega/game/chuni/v2/ApiChuniV2PlayerDataController.java
index 47390b25..fb1dca47 100644
--- a/src/main/java/icu/samnyan/aqua/api/controller/sega/game/chuni/v2/ApiChuniV2PlayerDataController.java
+++ b/src/main/java/icu/samnyan/aqua/api/controller/sega/game/chuni/v2/ApiChuniV2PlayerDataController.java
@@ -110,7 +110,6 @@ public class ApiChuniV2PlayerDataController {
     public UserData updateName(@RequestBody Map<String, Object> request) {
         UserData profile = userDataService.getUserByExtId((String) request.get("aimeId")).orElseThrow();
         profile.setUserName((String) request.get("userName"));
-        profile.setUserNameEx((String) request.get("userName"));
         return userDataService.saveUserData(profile);
     }
 
diff --git a/src/main/java/icu/samnyan/aqua/sega/chusan/handler/impl/GetUserPreviewHandler.java b/src/main/java/icu/samnyan/aqua/sega/chusan/handler/impl/GetUserPreviewHandler.java
index fd3e7a9b..d20fa38a 100644
--- a/src/main/java/icu/samnyan/aqua/sega/chusan/handler/impl/GetUserPreviewHandler.java
+++ b/src/main/java/icu/samnyan/aqua/sega/chusan/handler/impl/GetUserPreviewHandler.java
@@ -90,7 +90,7 @@ public class GetUserPreviewHandler implements BaseHandler {
         });
 
         resp.setChargeState(1);
-        resp.setUserNameEx(user.getUserName());
+        resp.setUserNameEx("");
         resp.setBanState(0);
         resp.setClassEmblemMedal(user.getClassEmblemMedal());
         resp.setClassEmblemBase(user.getClassEmblemBase());
diff --git a/src/main/java/icu/samnyan/aqua/sega/chusan/handler/impl/UpsertUserAllHandler.java b/src/main/java/icu/samnyan/aqua/sega/chusan/handler/impl/UpsertUserAllHandler.java
index 406ff3fe..2cad6f80 100644
--- a/src/main/java/icu/samnyan/aqua/sega/chusan/handler/impl/UpsertUserAllHandler.java
+++ b/src/main/java/icu/samnyan/aqua/sega/chusan/handler/impl/UpsertUserAllHandler.java
@@ -92,13 +92,12 @@ public class UpsertUserAllHandler implements BaseHandler {
             newUserData.setId(userData.getId());
             newUserData.setCard(userData.getCard());
 
-
             // Decode Username
             String userName = new String(newUserData.getUserName()
                     .getBytes(StandardCharsets.ISO_8859_1), StandardCharsets.UTF_8);
 
-
             newUserData.setUserName(userName);
+            newUserData.setUserNameEx("");
             userDataService.saveAndFlushUserData(newUserData);
         }