diff --git a/src/main/java/org/ntlab/acanthus_server/entities/Account.java b/src/main/java/org/ntlab/acanthus_server/entities/Account.java
index 0f911e4..127c775 100644
--- a/src/main/java/org/ntlab/acanthus_server/entities/Account.java
+++ b/src/main/java/org/ntlab/acanthus_server/entities/Account.java
@@ -67,8 +67,8 @@
 
     //-----------------------------------------------------------------
     //コンストラクト
-    public Account() {
-        createDummyAccount();
+    public Account(Integer idMargin) {
+        createDummyAccount(idMargin);
     }
     //-----------------------------------------------------------------
 
@@ -171,30 +171,32 @@
     public boolean isMatchedPassword(String password) {
         return this.password.equals(password);
     }
+
     //-----------------------------------------------------------------
     // トークンのチェック
-    public boolean isCollectToken(String token){
+    public boolean isCollectToken(String token) {
         var timeoutThreshold = 3;
         var nowDateTime = LocalDateTime.now();
 
-        if(lastAccess==null) lastAccess = nowDateTime;
+        if (lastAccess == null) lastAccess = nowDateTime;
 
         // 時刻比較
         var duration = Duration.between(lastAccess, nowDateTime).toHours();
-        if(duration > timeoutThreshold) return false;
+        if (duration > timeoutThreshold) return false;
 
         return token.equals(this.token);
     }
+
     //-----------------------------------------------------------------
     //-----------------------------------------------------------------
     // ダミー
-    private void createDummyAccount() {
+    private void createDummyAccount(Integer idMargin) {
         this.isDummy = true;
-        this.uid = 1;
-        this.name = "dummy";
-        this.email = "d@dummy.com";
+        this.uid = 1 + idMargin;
+        this.name = "dummy" + idMargin.toString();
+        this.email = "d" + idMargin.toString() + "@dummy.com";
         this.password = "nittalab";
-        this.token = "abc";
+        this.token = "abc" + idMargin.toString();
         this.lastAccess = LocalDateTime.now();
 
         //this.lastAccess = LocalDateTime.of(2015, 12, 15,  0,  0);