diff --git a/build.gradle b/build.gradle
index 709257b..39fa77f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ plugins {
 }
 
 group 'cc.sukazyo'
-version '0.3.1'
+version '0.3.2'
 project.ext.archiveBaseName = 'Coeur_Morny_Cono'
 project.ext.artifactId = 'morny-coeur'
 mainClassName = 'cc.sukazyo.cono.morny.MornyCoeur'
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 67af138..389b329 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
@@ -4,6 +4,8 @@ import cc.sukazyo.cono.morny.MornyCoeur;
 import cc.sukazyo.cono.morny.MornySystem;
 import cc.sukazyo.cono.morny.MornyTrusted;
 import cc.sukazyo.cono.morny.bot.api.EventListener;
+import cc.sukazyo.cono.morny.bot.event.on_commands.GetUsernameAndId;
+import cc.sukazyo.cono.morny.util.StringUtils;
 import com.pengrad.telegrambot.model.Update;
 import com.pengrad.telegrambot.model.request.ParseMode;
 import com.pengrad.telegrambot.request.SendMessage;
@@ -23,7 +25,13 @@ public class OnCommandExecute extends EventListener {
 		if (event.message().text() == null) {
 			return false;
 		}
-		switch (event.message().text()) {
+		String[] command = StringUtils.formatCommand(event.message().text());
+		if (command.length == 0) return false;
+		switch (command[0]) {
+			case "/user":
+			case "/user@" + MornyCoeur.USERNAME:
+				GetUsernameAndId.exec(command, event);
+				break;
 			case "/o":
 			case "/o@" + MornyCoeur.USERNAME:
 				onCommandOnExec(event);
@@ -94,7 +102,7 @@ public class OnCommandExecute extends EventListener {
 						MornySystem.VERSION,
 						MornySystem.getJarMd5()
 				)
-		).parseMode(ParseMode.HTML));
+		).replyToMessageId(event.message().messageId()).parseMode(ParseMode.HTML));
 	}
 	
 }
diff --git a/src/main/java/cc/sukazyo/cono/morny/bot/event/on_commands/GetUsernameAndId.java b/src/main/java/cc/sukazyo/cono/morny/bot/event/on_commands/GetUsernameAndId.java
new file mode 100644
index 0000000..f896e50
--- /dev/null
+++ b/src/main/java/cc/sukazyo/cono/morny/bot/event/on_commands/GetUsernameAndId.java
@@ -0,0 +1,100 @@
+package cc.sukazyo.cono.morny.bot.event.on_commands;
+
+import cc.sukazyo.cono.morny.MornyCoeur;
+import com.pengrad.telegrambot.model.Update;
+import com.pengrad.telegrambot.model.User;
+import com.pengrad.telegrambot.model.request.ParseMode;
+import com.pengrad.telegrambot.request.GetChatMember;
+import com.pengrad.telegrambot.request.SendMessage;
+import com.pengrad.telegrambot.response.GetChatMemberResponse;
+
+public class GetUsernameAndId {
+	
+	public static void exec (String[] command, Update event) {
+		
+		if (command.length > 2) { MornyCoeur.getAccount().execute(new SendMessage(
+				event.message().chat().id(),
+				"[Unavailable] Too much arguments."
+		).replyToMessageId(event.message().messageId())); return; }
+		
+		long userId = 0;
+		
+		if ( event.message().replyToMessage()!= null) {
+			userId = event.message().replyToMessage().from().id();
+		}
+		if (command.length > 1) {
+			try {
+				userId = Long.parseLong(command[1]);
+			} catch (NumberFormatException e) {
+				MornyCoeur.getAccount().execute(new SendMessage(
+						event.message().chat().id(),
+						"[Unavailable] " + e.getMessage()
+				).replyToMessageId(event.message().messageId()));
+				return;
+			}
+		}
+		
+		if (userId == 0) {
+			MornyCoeur.getAccount().execute(new SendMessage(
+					event.message().chat().id(),
+					"[Unavailable] no userid given."
+			).replyToMessageId(event.message().messageId()));
+			return;
+		}
+		
+		GetChatMemberResponse response = MornyCoeur.getAccount().execute(
+				new GetChatMember(event.message().chat().id(), userId)
+		);
+		
+		if (response.chatMember() == null) {
+			MornyCoeur.getAccount().execute(new SendMessage(
+					event.message().chat().id(),
+					"[Unavailable] user not found."
+			).replyToMessageId(event.message().messageId()));
+			return;
+		}
+		
+		User user = response.chatMember().user();
+		
+		StringBuilder userInformation = new StringBuilder();
+		userInformation.append(String.format(
+						"userid :\n" +
+						"- <code>%d</code>\n" +
+						"username :\n" +
+						"- <code>%s</code>",
+						userId, user.username()
+		));
+		if (user.firstName() == null) {
+			userInformation.append("\nfirstname : <u>null</u>");
+		} else {
+			userInformation.append(String.format(
+					"\nfirstname :\n" +
+					"- <code>%s</code>",
+					user.firstName()
+			));
+		}
+		if (user.lastName() == null) {
+			userInformation.append("\nlastname : <u>null</u>");
+		} else {
+			userInformation.append(String.format(
+					"\nlastname :\n" +
+					"- <code>%s</code>",
+					user.lastName()
+			));
+		}
+		if (user.languageCode() != null) {
+			userInformation.append(String.format(
+					"\nlanguage-code :\n" +
+					"- <code>%s</code>",
+					user.languageCode()
+			));
+		}
+		
+		MornyCoeur.getAccount().execute(new SendMessage(
+				event.message().chat().id(),
+				userInformation.toString()
+		).replyToMessageId(event.message().messageId()).parseMode(ParseMode.HTML));
+		
+	}
+	
+}
diff --git a/src/main/java/cc/sukazyo/cono/morny/util/StringUtils.java b/src/main/java/cc/sukazyo/cono/morny/util/StringUtils.java
index 7190670..cf35c87 100644
--- a/src/main/java/cc/sukazyo/cono/morny/util/StringUtils.java
+++ b/src/main/java/cc/sukazyo/cono/morny/util/StringUtils.java
@@ -1,5 +1,6 @@
 package cc.sukazyo.cono.morny.util;
 
+import java.util.ArrayList;
 import java.util.Arrays;
 
 public class StringUtils {
@@ -10,4 +11,42 @@ public class StringUtils {
 		return new String(chars);
 	}
 	
+	public static String[] formatCommand (String com) {
+		
+		ArrayList<String> arr = new ArrayList<>();
+		
+		StringBuilder tmp = new StringBuilder();
+		char[] coma = com.toCharArray();
+		for (int i = 0; i < coma.length; i++) {
+			if (coma[i] == ' ') {
+				if (!tmp.toString().equals("")) { arr.add(tmp.toString()); }
+				tmp.setLength(0);
+			} else if (coma[i] == '"') {
+				while (true) {
+					i++;
+					if (coma[i] == '"') {
+						break;
+					} else if (coma[i] == '\\' && (coma[i+1] == '"' || coma[i+1] == '\\')) {
+						i++;
+						tmp.append(coma[i]);
+					} else {
+						tmp.append(coma[i]);
+					}
+				}
+			} else if (coma[i] == '\\' && (coma[i+1] == ' ' || coma[i+1] == '"' || coma[i+1] == '\\')) {
+				i++;
+				tmp.append(coma[i]);
+			} else {
+				tmp.append(coma[i]);
+			}
+		}
+		if (!tmp.toString().equals("")) { arr.add(tmp.toString()); }
+		tmp.setLength(0);
+		
+		String[] out = new String[arr.size()];
+		arr.toArray(out);
+		return out;
+		
+	}
+	
 }