diff --git a/src/main/java/com/ntlab/irisserver/resources/MembersRest.java b/src/main/java/com/ntlab/irisserver/resources/MembersRest.java
index 913baa4..ece40b5 100644
--- a/src/main/java/com/ntlab/irisserver/resources/MembersRest.java
+++ b/src/main/java/com/ntlab/irisserver/resources/MembersRest.java
@@ -18,6 +18,8 @@
 public class MembersRest {
 
     public static void membershuffle(List<Member> m) {
+        RoomManager rm = RoomManager.getInstance();
+        Room room = rm.getRoom(rid);
 
         //List＜Member＞をshuffleする
         Collections.shuffle(m);
@@ -40,8 +42,13 @@
             //Listの偶数番目を"r"(赤)に、奇数番目を"b"(青)にする
             if(i % 2 == 0){
                 info.setBelongs("r");
+                room.setRedMaster(info);
+
+
             }else{
                 info.setBelongs("b");
+                room.setBlueMaster(info);
+
             }
         }