diff --git a/popcorn/Assets/MyGame/Scenes/Cooking/Cooking.unity b/popcorn/Assets/MyGame/Scenes/Cooking/Cooking.unity
index 147829cd..61f0052b 100644
--- a/popcorn/Assets/MyGame/Scenes/Cooking/Cooking.unity
+++ b/popcorn/Assets/MyGame/Scenes/Cooking/Cooking.unity
@@ -4380,6 +4380,8 @@ MonoBehaviour:
   cornPopSpeed: 30
   screenKoProbability: 0.2
   maxScreenKoCount: 1
+  willFinishValue: 0.798
+  cornAddCount: 50
   cornCountSlider: {fileID: 657773260}
   faildCountSlider: {fileID: 657773259}
   coldGrowSpeedSlider: {fileID: 1661453984}
diff --git a/popcorn/Assets/MyGame/Scenes/Cooking/Scripts/Corn.cs b/popcorn/Assets/MyGame/Scenes/Cooking/Scripts/Corn.cs
index 20b5966b..f7ef2f91 100644
--- a/popcorn/Assets/MyGame/Scenes/Cooking/Scripts/Corn.cs
+++ b/popcorn/Assets/MyGame/Scenes/Cooking/Scripts/Corn.cs
@@ -99,6 +99,12 @@ public class Corn : MonoBehaviour
                 case CornCondition.Seed:
                     break;
                 case CornCondition.Simple:
+                    // コーンが弾けたとき、GrowSpeedを再設定する
+                    // ThermalCondition.Hot以外では焦げ進行なし
+                    if (!isHot)
+                    {
+                        ChangeGrowSpeed(0f);
+                    }
                     CornPop();
                     break;
                 case CornCondition.Burnt:
diff --git a/popcorn/Assets/MyGame/Scenes/Cooking/Scripts/CornManager.cs b/popcorn/Assets/MyGame/Scenes/Cooking/Scripts/CornManager.cs
index 05ede726..8f13aa8f 100644
--- a/popcorn/Assets/MyGame/Scenes/Cooking/Scripts/CornManager.cs
+++ b/popcorn/Assets/MyGame/Scenes/Cooking/Scripts/CornManager.cs
@@ -32,6 +32,9 @@ public class CornManager : MonoBehaviour
     [Space]
     [SerializeField, Range(0,1)] private float screenKoProbability;
     [SerializeField] private int maxScreenKoCount;
+    [Header("演出で増やすコーン")]
+    [SerializeField, Range(0, 1)] private float willFinishValue = 0.6f;
+    [SerializeField] private int cornAddCount = 40;
 
     public IReadOnlyReactiveProperty<CornResult> Result => result;
     private readonly ReactiveProperty<CornResult> result = new ReactiveProperty<CornResult>();
@@ -132,18 +135,13 @@ public class CornManager : MonoBehaviour
         compositeDisposable.Clear();
         cornConditions.Clear();
         progress.Value = 0f;
-        for (int i = 0; i < cornArray.Length; i++)
-        {
-            if (cornArray[i] != null)
-            {
-                Destroy(cornArray[i].gameObject);
-            }
-        }
+        cornSpawnTarget.DestroyAllChildrens();
         cornArray = new Corn[cornSpawnCount];
         
         // コーン生成
-        var shuffledArray = Enumerable.Range(0, cornSpawnCount).OrderBy(_ => Random.value).ToArray();
-        for (int i = 0; i < cornSpawnCount; i++)
+        var shuffledArray = Enumerable.Range(0, cornArray.Length).OrderBy(_ => Random.value).ToArray();
+        
+        for (int i = 0; i < cornArray.Length; i++)
         {
             var corn = Instantiate(cornPrefab, cornSpawnTarget);
             cornArray[i] = corn;
@@ -179,12 +177,6 @@ public class CornManager : MonoBehaviour
                         case CornCondition.Seed:
                             break;
                         case CornCondition.Simple:
-                            // コーンが弾けたとき、GrowSpeedを再設定する
-                            // ThermalCondition.Hot以外では焦げ進行なし
-                            if (!isHot)
-                            {
-                                corn.ChangeGrowSpeed(0f);
-                            }
                             break;
                         case CornCondition.Burnt:
                             // ミス数加算
@@ -201,8 +193,9 @@ public class CornManager : MonoBehaviour
             cornConditions.Add(corn.Condition);
         }
 
-        var cornConditionsObservable = Observable.CombineLatest(cornConditions).Publish().RefCount();
+        var cornConditionsObservable = cornConditions.CombineLatest().Publish().RefCount();
 
+        // コーン全体の進捗
         cornConditionsObservable
             .Select(x => x.Count(cond => cond != CornCondition.Seed))
             .Subscribe(x =>
@@ -230,6 +223,36 @@ public class CornManager : MonoBehaviour
                     SetResult(CornResult.Good);
                 }
             }).AddTo(compositeDisposable);
+        
+        // 進捗によってコーンを増やす（演出用）
+        var amount = 5;
+        var times = cornAddCount / amount;
+        progress
+            .Where(x => x >= willFinishValue)
+            .Take(1)
+            .AsUnitObservable()
+            .Concat(Observable.TimerFrame(0,1).AsUnitObservable())
+            .Take(times)
+            .Subscribe(_ =>
+            {
+                Observable.Range(0, amount).Subscribe(__ =>
+                {
+                    var corn = Instantiate(cornPrefab, cornSpawnTarget);
+                    corn.SetCornProperty(0f, isHot ? 0f : 3f, cornSpillSpeed, cornPopSpeed);
+                    cornGrowSpeed.TakeWhile(x => !isCompleted).Subscribe(x =>
+                    {
+                        // コーンが弾けた後はRedの場合のみ焦げ進行する
+                        if (corn.Condition.Value == CornCondition.Simple && !isHot)
+                        {
+                            corn.ChangeGrowSpeed(0f);
+                            return;
+                        }
+
+                        corn.ChangeGrowSpeed(x);
+                        corn.ChangeHotStatus(isHot);
+                    }).AddTo(compositeDisposable);
+                }).AddTo(compositeDisposable);
+            }).AddTo(compositeDisposable);
     }
 
     public void ChangeGrowSpeed(ThermalCondition condition)