diff --git a/titles/chuni/base.py b/titles/chuni/base.py
index 43cad83..674fb9c 100644
--- a/titles/chuni/base.py
+++ b/titles/chuni/base.py
@@ -419,13 +419,13 @@ class ChuniBase:
         all_entries = self.data.score.get_rival_music(rival_id)
 
         # Process the entries based on max_count and nextIndex
-        for music in all_entries[next_index:]:
+        for music in all_entries:
             music_id = music["musicId"]
             level = music["level"]
             score = music["scoreMax"]
             rank = music["scoreRank"]
 
-            # Create a music entry for the current music_id
+            # Create a music entry for the current music_id if it's unique
             music_entry = next((entry for entry in user_rival_music_list if entry["musicId"] == music_id), None)
             if music_entry is None:
                 music_entry = {
@@ -435,15 +435,20 @@ class ChuniBase:
                 }
                 user_rival_music_list.append(music_entry)
 
-            # Create a level entry for the current level
-            level_entry = {
-                "level": level,
-                "scoreMax": score,
-                "scoreRank": rank
-            }
-            music_entry["userRivalMusicDetailList"].append(level_entry)
+            # Create a level entry for the current level if it's unique or has a higher score
+            level_entry = next((entry for entry in music_entry["userRivalMusicDetailList"] if entry["level"] == level), None)
+            if level_entry is None:
+                level_entry = {
+                    "level": level,
+                    "scoreMax": score,
+                    "scoreRank": rank
+                }
+                music_entry["userRivalMusicDetailList"].append(level_entry)
+            elif score > level_entry["scoreMax"]:
+                level_entry["scoreMax"] = score
+                level_entry["scoreRank"] = rank
 
-        # Calculate the length for each "musicId" by counting the levels
+        # Calculate the length for each "musicId" by counting the unique levels
         for music_entry in user_rival_music_list:
             music_entry["length"] = len(music_entry["userRivalMusicDetailList"])
 
@@ -451,11 +456,11 @@ class ChuniBase:
         result = {
             "userId": data["userId"],
             "rivalId": data["rivalId"],
-            "nextIndex": str(next_index + len(all_entries) if len(all_entries) <= len(user_rival_music_list) else -1),
-            "userRivalMusicList": user_rival_music_list[:max_count]
+            "nextIndex": str(next_index + len(user_rival_music_list[next_index: next_index + max_count]) if max_count <= len(user_rival_music_list[next_index: next_index + max_count]) else -1),
+            "userRivalMusicList": user_rival_music_list[next_index: next_index + max_count]
         }
-
         return result
+
     
     def handle_get_user_favorite_item_api_request(self, data: Dict) -> Dict:
         user_fav_item_list = []