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diff --git a/Assets/Scenes/stage8.unity b/Assets/Scenes/stage8.unity
index 8f123d3..cfa1114 100644
--- a/Assets/Scenes/stage8.unity
+++ b/Assets/Scenes/stage8.unity
@@ -2048,6 +2048,75 @@ Transform:
   m_Father: {fileID: 0}
   m_RootOrder: 9
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+--- !u!1001 &1821404954
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diff --git a/Assets/Scripts/Endroll.cs b/Assets/Scripts/Endroll.cs
index 6056ec5..e0186d6 100644
--- a/Assets/Scripts/Endroll.cs
+++ b/Assets/Scripts/Endroll.cs
@@ -2,6 +2,7 @@
 using UnityEngine;
 using UnityEngine.SceneManagement;
 using UnityEngine.UI;
+using Utility;
 
 /// 実装:岩本
 /// <summary>
@@ -10,10 +11,12 @@
 public class Endroll : MonoBehaviour
 {
     public GameObject Logo;
+    private System.Diagnostics.Stopwatch stopWatch;
 
     private Text tex;
 
     private float intervalSecond = 6.0f;
+    // private float blinkingSecond = .5f;
     private string[] creditArray = new string[]
     {
         "おわり",
@@ -24,12 +27,16 @@ public class Endroll : MonoBehaviour
         "スタッフ\n＜　chouette　＞\nプログラミング\nステージ制作\nデバッグ",
     };
     private string company = "九州工業大学\nプログラミング研究会";
+    private string clearTimeText;
 
     private Vector3 logoPos = new Vector3(0.0f, 1.6f, 0.0f);
 
     void Start()
     {
         tex = GetComponent<Text>();
+        stopWatch = GameObject.Find("StopWatch").GetComponent<StopWatch>().stopWatch;
+        clearTimeText = "クリアタイム\n" + stopWatch.Elapsed.ToString(@"mm\:ss\.ff") + "\nCongratulation!!!";
+
         StartCoroutine(RunEndroll());
     }
 
@@ -45,9 +52,23 @@ IEnumerator RunEndroll()
             ChangeText(credit);
             yield return new WaitForSeconds(intervalSecond);
         }
-        Instantiate(Logo, logoPos, Quaternion.identity);
+
+        Destroy(Instantiate(Logo, logoPos, Quaternion.identity), intervalSecond);
         ChangeText(company);
-        yield return new WaitForSeconds(intervalSecond * 3);
-        SceneManager.LoadScene((int)Utility.SceneIndex.Title);
+        yield return new WaitForSeconds(intervalSecond);
+
+        // クリアタイムを点滅させる
+        // for (int i = 0; i < 8; i++)
+        // {
+        //     ChangeText(clearTimeText);
+        //     yield return new WaitForSeconds(blinkingSecond);
+        //     ChangeText("");
+        //     yield return new WaitForSeconds(blinkingSecond);
+        // }
+
+        ChangeText(clearTimeText);
+        yield return new WaitForSeconds(intervalSecond * 2);
+
+        SceneManager.LoadScene((int)SceneIndex.Title);
     }
 }
diff --git a/Assets/Scripts/StopWatch.cs b/Assets/Scripts/StopWatch.cs
new file mode 100644
index 0000000..23ce0ff
--- /dev/null
+++ b/Assets/Scripts/StopWatch.cs
@@ -0,0 +1,71 @@
+using System.Diagnostics;
+using UnityEngine;
+using UnityEngine.SceneManagement;
+using Utility;
+
+/// <summary>
+/// 経過時間を表示するタイマーを管理する
+/// 複数シーンをまたぐためシングルトンを用いる
+/// </summary>
+public class StopWatch : MonoBehaviour
+{
+    static bool dontDestroyEnabled = false;
+
+    public Stopwatch stopWatch = new Stopwatch();
+
+    StringDisplay stringDisplay;
+
+    //シングルトン設定
+    void Awake()
+    {
+        if (dontDestroyEnabled)
+        {
+            Destroy(gameObject);
+        }
+        dontDestroyEnabled = true;
+        DontDestroyOnLoad(this.gameObject);
+    }
+
+    void Start()
+    {
+        stringDisplay = GetComponentInChildren<StringDisplay>();
+        //シーンが切り替わった時に呼ばれるメソッドを登録
+        SceneManager.activeSceneChanged += OnActiveSceneChanged;
+    }
+
+    // シーンが切り替わった瞬間に呼ばれるメソッド　
+    // 切り替わった際にしか呼ばれないので注意
+    void OnActiveSceneChanged(Scene prevScene, Scene nextScene)
+    {
+        ToggleCtrl(nextScene.buildIndex);
+    }
+
+    void ToggleCtrl(int buildIndex)
+    {
+        switch ((SceneIndex)buildIndex)
+        {
+            case SceneIndex.Turtorial:
+                stopWatch.Start();
+                break;
+
+            case SceneIndex.Ending:
+                stopWatch.Stop();
+                break;
+
+            case SceneIndex.Title:
+                stopWatch.Reset();
+                break;
+
+            default:
+                // デバック向けにどのステージから始めてもタイマーを起動するように
+                stopWatch.Start();
+                break;
+        }
+    }
+
+    void Update()
+    {
+        // TODO: Update内で呼び出だすとボトルネックになる可能性があるので改善する
+        stringDisplay.DisplayString(stopWatch.Elapsed.ToString(@"mm\:ss\.ff"));
+    }
+}
diff --git a/Assets/Scripts/StopWatch.cs.meta b/Assets/Scripts/StopWatch.cs.meta
new file mode 100644
index 0000000..fe5e8c4
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+++ b/Assets/Scripts/StopWatch.cs.meta
@@ -0,0 +1,11 @@
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