diff --git a/src/game/lib/util/string_util.js b/src/game/lib/util/string_util.js
index 47dd548..09d1852 100644
--- a/src/game/lib/util/string_util.js
+++ b/src/game/lib/util/string_util.js
@@ -140,6 +140,7 @@ StringUtil.getMultiAlphabetFromJungsung = function(alphabet) {
 	multiJungsungList['ㅚ'] = ['ㅗ', 'ㅣ'];
 	multiJungsungList['ㅝ'] = ['ㅜ', 'ㅓ'];
 	multiJungsungList['ㅞ'] = ['ㅜ', 'ㅔ'];
+	multiJungsungList['ㅟ'] = ['ㅜ', 'ㅣ'];
 	multiJungsungList['ㅢ'] = ['ㅡ', 'ㅣ'];
 
 	return multiJungsungList[alphabet];
diff --git a/src/game/typing/test/game.js b/src/game/typing/test/game.js
index 111bede..03ab692 100644
--- a/src/game/typing/test/game.js
+++ b/src/game/typing/test/game.js
@@ -233,8 +233,9 @@ var TypingTest = {
 	initTypingData: function() {
 		var typingTextMan = new TypingTextManager();
 
-		// var typingPracticeContents = [ "꿰뚫다" , "워머신", "홧김에" ];	// for debug
 		var typingPracticeContents = this.getTypingTestContents();
+		var typingPracticeContents = [ "십년이면 강산도 변한다." , "십년이면 강산도 변한다.", "십년이면 강산도 변한다." ];	// for debug
+		// var typingPracticeContents = [ "꿰뚫다" , "워머신", "홧김에" ];	// for debug
 		// console.log(typingPracticeContents);
 		typingTextMan.makeTestContents(typingPracticeContents);
 		var wordCountForStage = TypingTest.WORD_COUNT_FOR_STAGE;
@@ -446,11 +447,11 @@ var TypingTest = {
 	},
 
 	getHighlioghtKey: function(inputContent, typingContent) {
-		var highlightKey = "";
-
 		if(typingContent == undefined)
 			return undefined;
 
+		var highlightKey = "";
+		var inputIndex = inputContent.length - 1;
 		var inputLength = inputContent.length;
 		var typingLength = typingContent.length;
 		// console.log("inputLength : " + inputLength + " / " + inputContent);
@@ -476,24 +477,20 @@ var TypingTest = {
 
 		// english typing test
 		else if(isEnglishTypingApp()) {
-			console.log("===== english");
-			console.log("misspelledIndex : " + misspelledIndex);
-			if(inputLength == typingLength)
-				highlightKey = "Enter";
-			else if(misspelledIndex == -1)
-				highlightKey = typingContent[inputLength];
-			else if(misspelledIndex > -1)
-				highlightKey = "Backspace";
-			else
+			// console.log("===== english");
+			// console.log("misspelledIndex : " + misspelledIndex);
+			// console.log("inputIndex : " + inputIndex);
+			if(misspelledIndex > inputIndex)
 				highlightKey = typingContent[misspelledIndex];
+			else
+				highlightKey = "Backspace";
 		}
 		// korean typing test
 		else {
 			// console.log(misspelledIndex + " / " + typingContent[misspelledIndex]);
-			else if(typingContent[misspelledIndex] == " ")
+			if(typingContent[misspelledIndex] == " ")
 				highlightKey = " ";
 			else {
-				var inputIndex = inputContent.length - 1;
 				var inputLetter = "";
 				var typingLetter = "";
 				var typingNextLetter = "";
@@ -630,6 +627,7 @@ var TypingTest = {
 					// 입력할 글자에 종성이 있을 경우
 					else if(StringUtil.hasJongsung(typingLetter)) {
 						var typingLetterJongsung = StringUtil.jongsung(typingLetter);
+
 						// 입력한 글자의 종성과 입력할 글자의 종성이 같은 경우
 						if(StringUtil.jongsung(inputLetter) == typingLetterJongsung)
 							highlightKey = StringUtil.chosung(typingNextLetter);