diff --git a/src/game/typing/practice/game.js b/src/game/typing/practice/game.js
index d0a86b3..91e10d0 100644
--- a/src/game/typing/practice/game.js
+++ b/src/game/typing/practice/game.js
@@ -52,12 +52,11 @@ class TypingPractice {
 
 
 		let keyMapper = null;
-		if(sessionStorageManager.playingAppName.substring("korean") > 0)
+		if(sessionStorageManager.playingAppName.indexOf("korean") > 0)
 			keyMapper = new KoreanKeyMapper();
 		else
 			keyMapper = new EnglishKeyMapper();
 
-		// let keyButton = new KeyButton(100, 400, 100, "A", "align_type");
 		new Keyboard(keyMapper);
 
 
@@ -86,18 +85,10 @@ class TypingPractice {
 		screenBottom.printBottomRightText(sessionStorageManager.playerName);
 
 
-		// game.input.keyboard.addCallbacks(this, null, null, this.keyPress);
 		// this.startGame();
 		// this.countDown();
 	}
 
-	keyPress(char) {
-		// self.checkTypingContents(event);
-		console.log(char);
-		if(game.input.keyboard.isDown(Phaser.Keyboard.SHIFT))
-			console.log("shift is pressed");
-	}
-
 	startGame() {
 		this.showTypingPracticeContents();
 		this.showPlayingWordNumber();
diff --git a/src/game/typing/practice/korean_key_mapper.js b/src/game/typing/practice/korean_key_mapper.js
index d0d50e4..efa1c01 100644
--- a/src/game/typing/practice/korean_key_mapper.js
+++ b/src/game/typing/practice/korean_key_mapper.js
@@ -4,8 +4,8 @@ class KoreanKeyMapper extends KeyMapper {
 		super();
 
 		this.registerKeyTextData("KeyQ", "ㅂ", "ㅃ");
-		this.registerKeyTextData("KeyR", "ㅈ", "ㅉ");
-		this.registerKeyTextData("KeyEe", "ㄷ", "ㄸ");
+		this.registerKeyTextData("KeyW", "ㅈ", "ㅉ");
+		this.registerKeyTextData("KeyE", "ㄷ", "ㄸ");
 		this.registerKeyTextData("KeyR", "ㄱ", "ㄲ");
 		this.registerKeyTextData("KeyT", "ㅅ", "ㅆ");
 		this.registerKeyTextData("KeyY", "ㅛ", "ㅛ");
@@ -18,10 +18,10 @@ class KoreanKeyMapper extends KeyMapper {
 		this.registerKeyTextData("KeyS", "ㄴ", "ㄴ");
 		this.registerKeyTextData("KeyD", "ㅇ", "ㅇ");
 		this.registerKeyTextData("KeyF", "ㄹ", "ㄹ");
-		this.registerKeyTextData("KeyG”", "ㅎ", "ㅎ");
+		this.registerKeyTextData("KeyG", "ㅎ", "ㅎ");
 		this.registerKeyTextData("KeyH", "ㅗ", "ㅗ");
 		this.registerKeyTextData("KeyJ", "ㅓ", "ㅓ");
-		this.registerKeyTextData("KeyJ", "ㅏ", "ㅏ");
+		this.registerKeyTextData("KeyK", "ㅏ", "ㅏ");
 		this.registerKeyTextData("KeyL", "ㅣ", "ㅣ");
 
 		this.registerKeyTextData("KeyZ", "ㅋ", "ㅋ");