diff --git a/src/main/java/cc/sukazyo/cono/morny/MornyCoeur.java b/src/main/java/cc/sukazyo/cono/morny/MornyCoeur.java
index 1b339ff..26859e4 100644
--- a/src/main/java/cc/sukazyo/cono/morny/MornyCoeur.java
+++ b/src/main/java/cc/sukazyo/cono/morny/MornyCoeur.java
@@ -11,6 +11,7 @@ import static cc.sukazyo.cono.morny.Logger.logger;
 public class MornyCoeur {
 	
 	private static TelegramBot account;
+	public static final String USERNAME = "morny_cono_annie_bot";
 	
 	public static void main (String[] args) {
 		
@@ -20,7 +21,7 @@ public class MornyCoeur {
 		logger.info("args key:\n  " + args[0]);
 		
 		try { account = login(args[0]); }
-		catch (Exception e) { logger.error("Cannot login to bot/api."); System.exit(-1); }
+		catch (Exception e) { logger.error("Cannot login to bot/api. :\n  " + e.getMessage()); System.exit(-1); }
 		
 		logger.info("Bot login succeed.");
 		
@@ -37,7 +38,10 @@ public class MornyCoeur {
 		for (int i = 1; i < 4; i++) {
 			if (i != 1) logger.info("retrying...");
 			try {
-				logger.info("Succeed login to @" + account.execute(new GetMe()).user().username());
+				String username = account.execute(new GetMe()).user().username();
+				if (!USERNAME.equals(username))
+					throw new RuntimeException("Required the bot @"+USERNAME + " but @"+username + "logged in!");
+				logger.info("Succeed login to @" + username);
 				return account;
 			} catch (Exception e) {
 				e.printStackTrace(System.out);
diff --git a/src/main/java/cc/sukazyo/cono/morny/data/MornyHello.java b/src/main/java/cc/sukazyo/cono/morny/MornyHello.java
similarity index 99%
rename from src/main/java/cc/sukazyo/cono/morny/data/MornyHello.java
rename to src/main/java/cc/sukazyo/cono/morny/MornyHello.java
index f8be6e3..4004403 100644
--- a/src/main/java/cc/sukazyo/cono/morny/data/MornyHello.java
+++ b/src/main/java/cc/sukazyo/cono/morny/MornyHello.java
@@ -1,4 +1,4 @@
-package cc.sukazyo.cono.morny.data;
+package cc.sukazyo.cono.morny;
 
 @SuppressWarnings("all")
 public class MornyHello {
diff --git a/src/main/java/cc/sukazyo/cono/morny/bot/event/OnCommandExecute.java b/src/main/java/cc/sukazyo/cono/morny/bot/event/OnCommandExecute.java
index 4f2b9ea..a6653d2 100644
--- a/src/main/java/cc/sukazyo/cono/morny/bot/event/OnCommandExecute.java
+++ b/src/main/java/cc/sukazyo/cono/morny/bot/event/OnCommandExecute.java
@@ -22,13 +22,17 @@ public class OnCommandExecute extends EventListener {
 		}
 		switch (event.message().text()) {
 			case "/o":
+			case "/o@" + MornyCoeur.USERNAME:
 				onCommandOnExec(event);
 				break;
 			case "/hi":
+			case "/hi@" + MornyCoeur.USERNAME:
 			case "/hello":
+			case "/hello@" + MornyCoeur.USERNAME:
 				onCommandHelloExec(event);
 				break;
 			case "/exit":
+			case "/exit@" + MornyCoeur.USERNAME:
 				onCommandExitExec(event);
 				break;
 			default: