diff --git a/app/src/main/java/com/example/sprout/refactor/util/PreferenceUtil.java b/app/src/main/java/com/example/sprout/refactor/util/PreferenceUtil.java
index 825915f..c384253 100644
--- a/app/src/main/java/com/example/sprout/refactor/util/PreferenceUtil.java
+++ b/app/src/main/java/com/example/sprout/refactor/util/PreferenceUtil.java
@@ -27,6 +27,7 @@
     public enum Key {
         REGISTERED, // アカウント登録済みかどうか
         USER_ID, // ユーザーid
+        MEMBER_ID, // メンバーid サーバ側でのRoom.MemberListの順番
         ROOM_ID // ルームid
     }
 
diff --git a/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomCreateViewModel.java b/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomCreateViewModel.java
index 6640fa9..8c08de5 100644
--- a/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomCreateViewModel.java
+++ b/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomCreateViewModel.java
@@ -32,6 +32,7 @@
             @Override
             public void notify(RoomResponse roomResponse) {
                 PreferenceUtil.getInstance().saveInt(PreferenceUtil.Key.ROOM_ID, roomResponse.getRoom().getRoomId());
+                PreferenceUtil.getInstance().saveInt(PreferenceUtil.Key.MEMBER_ID, roomResponse.getMemberId());
                 viewContract.showShortToast("ルームを作成しました");
                 viewContract.startActivity(ActivityEvent.ROOM_MAIN);
                 viewContract.finishActivity();
diff --git a/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomListViewModel.java b/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomListViewModel.java
index 33173a9..9d4acff 100644
--- a/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomListViewModel.java
+++ b/app/src/main/java/com/example/sprout/refactor/viewmodel/RoomListViewModel.java
@@ -66,6 +66,7 @@
             public void notify(RoomResponse roomResponse) {
                 if (roomResponse.canEnter()) {
                     PreferenceUtil.getInstance().saveInt(PreferenceUtil.Key.ROOM_ID, roomResponse.getRoom().getRoomId());
+                    PreferenceUtil.getInstance().saveInt(PreferenceUtil.Key.MEMBER_ID, roomResponse.getMemberId());
                     viewContract.startActivity(ActivityEvent.ROOM_MAIN);
                 } else {
                     viewContract.showShortToast("入室に失敗しました");
diff --git a/app/src/main/java/com/example/sprout/refactor/vo/Member.java b/app/src/main/java/com/example/sprout/refactor/vo/Member.java
new file mode 100644
index 0000000..40b196c
--- /dev/null
+++ b/app/src/main/java/com/example/sprout/refactor/vo/Member.java
@@ -0,0 +1,33 @@
+package com.example.sprout.refactor.vo;
+
+/**
+ * ルームのEntity
+ */
+public class Member {
+
+    private int userId = -1;
+    private String userName = "";
+    private int memberId = -1;
+    private int role = -1;
+    private boolean ready = false;
+
+    public int getUserId() {
+        return userId;
+    }
+
+    public String getUserName() {
+        return userName;
+    }
+
+    public int getMemberId() {
+        return memberId;
+    }
+
+    public int getRole() {
+        return role;
+    }
+
+    public boolean isReady() {
+        return ready;
+    }
+}
diff --git a/app/src/main/java/com/example/sprout/refactor/vo/Room.java b/app/src/main/java/com/example/sprout/refactor/vo/Room.java
index 68217c4..54974cb 100644
--- a/app/src/main/java/com/example/sprout/refactor/vo/Room.java
+++ b/app/src/main/java/com/example/sprout/refactor/vo/Room.java
@@ -1,7 +1,5 @@
 package com.example.sprout.refactor.vo;
 
-import com.example.sprout.rooms.Member;
-
 import java.util.HashMap;
 
 /**