diff --git a/app/src/main/java/org/ntlab/irisclient/entities/RoomJson.java b/app/src/main/java/org/ntlab/irisclient/entities/RoomJson.java
index 959eb9e..02743a0 100644
--- a/app/src/main/java/org/ntlab/irisclient/entities/RoomJson.java
+++ b/app/src/main/java/org/ntlab/irisclient/entities/RoomJson.java
@@ -1,19 +1,19 @@
 package org.ntlab.irisclient.entities;
 
-import android.provider.Settings;
 import org.ntlab.irisclient.models.Member;
-import org.ntlab.irisclient.models.Room;
+
 
 import java.util.ArrayList;
-import java.util.List;
+import java.util.Collection;
 
 public class RoomJson {
 
     //フィールド
     private String rid;
-    private int state;
+    private Integer state;
     private String ownerName;
-    List<Member> members = new ArrayList<>();
+    //List<Member> members = new ArrayList<>();
+    //private ArrayList<Member> members = new ArrayList<>();
 
     //--------------------------------------------------------------
     public RoomJson(){
@@ -23,10 +23,28 @@
     //getter
     public String getRid() {return this.rid;}
 
-    public int getState() {return this.state;}
+    public Integer getState() {return this.state;}
 
     public String getOwnerName() {return this.ownerName;}
 
-    public List<Member> getMembers() {return this.members;}
+    //public Collection<Member> getMembers() {return this.members;}
+
+    //--------------------------------------------------------------
+    //setter
+    public void setRid(String rid) {
+        this.rid = rid;
+    }
+
+    public void setState(Integer state) {
+        this.state = state;
+    }
+
+    public void setOwnerName(String ownerName) {
+        this.ownerName = ownerName;
+    }
+
+//    public void setMembers(ArrayList<Member> members){
+//        this.members = members;
+//    }
 
 }
\ No newline at end of file
diff --git a/app/src/main/java/org/ntlab/irisclient/models/Member.java b/app/src/main/java/org/ntlab/irisclient/models/Member.java
index e6250f6..dc0f65e 100644
--- a/app/src/main/java/org/ntlab/irisclient/models/Member.java
+++ b/app/src/main/java/org/ntlab/irisclient/models/Member.java
@@ -9,11 +9,22 @@
 
     //-----------------------------------------------------------------
     //コンストラクト
+    public Member() {
+    }
     public Member(String nickname) {
         this.nickname = nickname;
         this.belongs = "n";
         this.master = false;
     }
+    //-----------------------------------------------------------------
+    // getter
+    public String getNickname() {return this.nickname;}
+
+    public String getBelongs() {return this.belongs;}
+
+    public boolean getMaster() {return this.master;}
+
+    public boolean isMaster() {return this.master;}
 
     //-----------------------------------------------------------------
     // setter
@@ -23,12 +34,6 @@
 
     public void setMaster(boolean master) {this.master = master;}
 
-    //-----------------------------------------------------------------
-    // getter
-    public String getNickname() {return this.nickname;}
 
-    public String getBelongs() {return this.belongs;}
-
-    public boolean getMaster() {return this.master;}
 
 }
diff --git a/app/src/main/java/org/ntlab/irisclient/resources/RoomsRest.java b/app/src/main/java/org/ntlab/irisclient/resources/RoomsRest.java
index ec4a8f8..e31ed7b 100644
--- a/app/src/main/java/org/ntlab/irisclient/resources/RoomsRest.java
+++ b/app/src/main/java/org/ntlab/irisclient/resources/RoomsRest.java
@@ -1,9 +1,8 @@
 package org.ntlab.irisclient.resources;
 
-import org.ntlab.irisclient.entities.MemberJson;
 import org.ntlab.irisclient.entities.RoomJson;
 import org.ntlab.irisclient.models.Settings;
-
+import org.ntlab.irisclient.models.Member;
 import java.util.List;
 
 import retrofit2.Call;
@@ -28,7 +27,7 @@
     //-----------------------------------------------
     // メンバー情報を取得するメソッド
     @GET("rooms/{rid}")
-    Call<RoomJson> getRoomMember(
+    Call<List<Member>> getRoomMember(
             @Path("rid") String rid
     );
 
diff --git a/app/src/main/java/org/ntlab/irisclient/viewmodels/RoomViewModel.java b/app/src/main/java/org/ntlab/irisclient/viewmodels/RoomViewModel.java
index 0eb7e41..10f4836 100644
--- a/app/src/main/java/org/ntlab/irisclient/viewmodels/RoomViewModel.java
+++ b/app/src/main/java/org/ntlab/irisclient/viewmodels/RoomViewModel.java
@@ -1,6 +1,7 @@
 package org.ntlab.irisclient.viewmodels;
 
 import org.ntlab.irisclient.entities.RoomJson;
+import org.ntlab.irisclient.models.Member;
 import org.ntlab.irisclient.models.Settings;
 import org.ntlab.irisclient.resources.RoomsRest;
 
@@ -8,6 +9,8 @@
 import androidx.lifecycle.MutableLiveData;
 import androidx.lifecycle.ViewModel;
 
+import java.util.List;
+
 import retrofit2.Call;
 import retrofit2.Callback;
 import retrofit2.Response;
@@ -51,25 +54,25 @@
     public void updateRoom(String rid) {
 
         final RoomsRest roomsRest = retrofit.create(RoomsRest.class);
-        Call<RoomJson> call = roomsRest.getRoomMember(rid);
+        Call<List<Member>> call = roomsRest.getRoomMember(rid);
 
-        call.enqueue(new Callback<RoomJson>() {
+        call.enqueue(new Callback<List<Member>>() {
             @Override
-            public void onResponse(Call<RoomJson> call, Response<RoomJson> response) {
+            public void onResponse(Call<List<Member>> call, Response<List<Member>> response) {
                 if (response.isSuccessful()){
 
                     if(response.body().equals(roomJsonPreData)){
                         //値が一緒なら書き換えない
                     }else{
                         //値が異なるときのみライブデータを上書き
-                        roomMutableLiveData.setValue(response.body());
-                        roomJsonPreData = response.body();
+                        roomMutableLiveData.setValue((RoomJson) response.body());
+                        roomJsonPreData = (RoomJson) response.body();
                     }
 
                 }
             }
             @Override
-            public void onFailure(Call<RoomJson> call, Throwable t) {
+            public void onFailure(Call<List<Member>> call, Throwable t) {
             }
         });
     }