diff --git a/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/StageManager.cs b/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/StageManager.cs
index 151d3530..408fe8a7 100644
--- a/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/StageManager.cs
+++ b/popcorn/Assets/MyGame/Scenes/MiniGame/Scripts/StageManager.cs
@@ -62,15 +62,6 @@ namespace MyGame.Scenes.MiniGame.Scripts
 
         private void GenerateStage()
         {
-            // ステージデータ更新確認
-            var time = cacheElapsedTime + elapsedTimeOffset;
-            if (nextStageData != null && nextStageData.time <= time)
-            {
-                beginIndex = 0;
-                currentStageData = GetCurrentStage(time);
-                nextStageData = GetNextStage(time);
-            }
-            
             // リソース読み込み
             stageBeginPrefabList = currentStageData.GetBeginStagePrefabs();
             stageRandomPrefabList = currentStageData.GetRandomStagePrefabs();
@@ -129,6 +120,15 @@ namespace MyGame.Scenes.MiniGame.Scripts
         public void UpdateTime(float elapsed)
         {
             cacheElapsedTime = elapsed;
+            // ステージデータ更新確認
+            var time = cacheElapsedTime + elapsedTimeOffset;
+            if (nextStageData == null || !(nextStageData.time <= time))
+            {
+                return;
+            }
+            beginIndex = 0;
+            currentStageData = GetCurrentStage(time);
+            nextStageData = GetNextStage(time);
         }
 
         public void UpdatePos(float targetXPos)