diff --git a/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java b/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java
index b9c3a37..e319394 100644
--- a/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java
+++ b/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java
@@ -48,9 +48,8 @@
         String roomId = ((Iris) getApplication()).getRid();
         String nickname = ((Iris) getApplication()).getNickname();
 
-
-
-        //自分のなまえ
+        //--------------------------------------------------------------------------
+        //自分の名前
         Intent intentMain = getIntent();
         myName = intentMain.getStringExtra("nickname");
 
@@ -68,49 +67,26 @@
 
         roomViewModel.setRid(roomId);
 
-        /*memberList = roomViewModel.getMembersLiveData().getValue();
-
-        memberList.forEach(m -> members.add(m.getNickname()));*/
-
         ListView membersList = (ListView) findViewById(R.id.MembersList);
 
         BaseAdapter adapter = new MemberListAdapter(this.getApplicationContext(), R.layout.member_list_layout, viewMembers);
         membersList.setAdapter(adapter);
 
         //LiveData(List<Member>)への購読
-        /*roomViewModel.getMembersLiveData().observe(this, new Observer<List<Member>>() {
+        roomViewModel.getMembersLiveData().observe(this, new Observer<List<Member>>() {
             //private List<Member> members;
             @Override
             public void onChanged(List<Member> irisMembers) {
-                int i = 0;
-                if(irisMembers.size() == oldMembers.size()) {
 
-                    do {
-                        if (irisMembers.get(i).getNickname().equals(oldMembers.get(i))) {
-                            i++;
-                        } else {
-                            viewMembers.clear();
-                            irisMembers.forEach(m -> viewMembers.add(m.getNickname()));
-                            System.arraycopy(viewMembers, 0, oldMembers, 0, viewMembers.size());
+                viewMembers.clear();
+                irisMembers.forEach(m -> viewMembers.add(m.getNickname()));
 
-                            BaseAdapter adapter = new MemberListAdapter(getApplicationContext(), R.layout.member_list_layout, viewMembers);
-                            membersList.setAdapter(adapter);
+                BaseAdapter adapter = new MemberListAdapter(getApplicationContext(), R.layout.member_list_layout, viewMembers);
+                membersList.setAdapter(adapter);
 
-                            break;
-                        }
-
-                    } while (i < oldMembers.size());
-                } else {
-                    viewMembers.clear();
-                    irisMembers.forEach(m -> viewMembers.add(m.getNickname()));
-                    System.arraycopy(viewMembers, 0, oldMembers, 0, viewMembers.size());
-
-                    BaseAdapter adapter = new MemberListAdapter(getApplicationContext(), R.layout.member_list_layout, viewMembers);
-                    membersList.setAdapter(adapter);
                 }
 
-            }
-        });*/
+        });
 
         roomViewModel.getStateLiveData().observe(this, new Observer<Integer>() {
             @Override
@@ -128,7 +104,6 @@
         buttonProcesses();
 
 
-
         //---------------------------------------------------------------
         //settings情報
         String s = "設定されている内容がここに表示されるはずです";
@@ -144,22 +119,6 @@
 
     }
 
-    /*
-    // 初期化
-    private void init() {
-        setContentView(R.layout.activity_member_room);
-        startObserve();
-    }
-
-
-    /*private getMemberInformation(){
-
-    }*/
-
-    /*private void addMemberToMemberList(String m){
-        members.add(m);
-    }*/
-
     public void buttonProcesses(){
         Button redMasterButton = (Button) findViewById(R.id.beRedMaster);
         Button redSpyButton = (Button) findViewById(R.id.beRedSpy);