diff --git a/f_install/j_setup_db.php b/f_install/j_setup_db.php
index 2b830e91..5990f0ae 100644
--- a/f_install/j_setup_db.php
+++ b/f_install/j_setup_db.php
@@ -15,7 +15,7 @@ $gameImagePath = Util::getPost('game_image_path');
 $imageRequestKey = Util::getPost('image_request_key');
 
 $kakaoRESTKey = Util::getPost('kakao_rest_key', 'string', '');
-$kakaoAdminKey = Util::ggetPostetReq('kakao_admin_key', 'string', '');
+$kakaoAdminKey = Util::getPost('kakao_admin_key', 'string', '');
 
 
 if (!$host || !$port || !$username || !$password || !$dbName || !$servHost || !$sharedIconPath || !$gameImagePath) {
diff --git a/hwe/c_vote.php b/hwe/c_vote.php
index b8bed2bf..a7d2d77f 100644
--- a/hwe/c_vote.php
+++ b/hwe/c_vote.php
@@ -38,7 +38,7 @@ if($btn == "투표" && $general->getVar('vote') == 0 && $sel > 0) {
     }
 }
 else if($btn == "댓글" && trim($comment) != "") {
-    $comment = trim($comment);
+    $comment = StringUtil::neutralize($comment);
 
     $nation = $general->getStaticNation();
 
diff --git a/hwe/func_command.php b/hwe/func_command.php
index b9dec13d..a919fab7 100644
--- a/hwe/func_command.php
+++ b/hwe/func_command.php
@@ -206,6 +206,26 @@ function _setNationCommand(NationCommand $command, array $turnList):void  {
     ], 'nation_id = %i AND officer_level = %i AND turn_idx IN %li', $nationID, $officerLevel, $turnList);
 }
 
+function sanitizeArg(?array $args):?array{
+    if($args === null){
+        return $args;
+    }
+
+    $result = [];
+    foreach($args as $key=>$value){
+        if(is_array($value)){
+            $result[$key] = sanitizeArg($value);
+        }
+        else if(is_string($value)){
+            $result[$key] = StringUtil::neutralize(StringUtil::removeSpecialCharacter($value));
+        }
+        else{
+            $result[$key] = $value;
+        }
+    }
+    return $result;
+}
+
 function checkCommandArg(?array $arg):?string{
     if($arg === null){
         return null;
@@ -284,6 +304,7 @@ function setGeneralCommand(int $generalID, array $rawTurnList, string $command,
     }
     $turnList = array_keys($turnList);
 
+    $arg = sanitizeArg($arg);
     $argBasicTestResult = checkCommandArg($arg);
     if($argBasicTestResult !== null){
         return [
@@ -357,6 +378,7 @@ function setNationCommand(int $generalID, array $turnList, string $command, ?arr
         }
     }
 
+    $arg = sanitizeArg($arg);
     $argBasicTestResult = checkCommandArg($arg);
     if($argBasicTestResult !== null){
         return [
diff --git a/hwe/j_board_article_add.php b/hwe/j_board_article_add.php
index 4b4b3a89..6e0c0c7e 100644
--- a/hwe/j_board_article_add.php
+++ b/hwe/j_board_article_add.php
@@ -34,8 +34,8 @@ if($title === null || $text === null){
     ]);
 }
 
-$title = trim($title);
-$text = trim($text);
+$title = StringUtil::neutralize($title);
+$text = StringUtil::neutralize($text);
 
 if(!$title && !$text){
     Json::die([
diff --git a/hwe/j_board_comment_add.php b/hwe/j_board_comment_add.php
index 12ada898..45820e66 100644
--- a/hwe/j_board_comment_add.php
+++ b/hwe/j_board_comment_add.php
@@ -33,7 +33,7 @@ if($articleNo === null || $text === null){
     ]);
 }
 
-$text = trim($text);
+$text = StringUtil::neutralize($text);
 
 if(!$text){
     Json::die([
diff --git a/hwe/j_diplomacy_respond_letter.php b/hwe/j_diplomacy_respond_letter.php
index 27a11fc4..2784b543 100644
--- a/hwe/j_diplomacy_respond_letter.php
+++ b/hwe/j_diplomacy_respond_letter.php
@@ -45,7 +45,7 @@ if ($permission < 4) {
     ]);
 }
 
-$reason = trim($reason);
+$reason = StringUtil::neutralize($reason);
 
 $letter = $db->queryFirstRow('SELECT * FROM ng_diplomacy WHERE no=%i AND dest_nation_id = %i AND state = \'proposed\'', $letterNo, $me['nation']);
 if(!$letter){
diff --git a/hwe/j_diplomacy_send_letter.php b/hwe/j_diplomacy_send_letter.php
index ad987993..51ab2af8 100644
--- a/hwe/j_diplomacy_send_letter.php
+++ b/hwe/j_diplomacy_send_letter.php
@@ -46,8 +46,8 @@ if($textBrief === null || $textDetail === null){
     ]);
 }
 
-$textBrief = trim($textBrief);
-$textDetail = trim($textDetail);
+$textBrief = StringUtil::neutralize($textBrief);
+$textDetail = StringUtil::neutralize($textDetail);
 
 if(!$textBrief){
     Json::die([
diff --git a/hwe/j_msg_submit.php b/hwe/j_msg_submit.php
index 33582367..d180b917 100644
--- a/hwe/j_msg_submit.php
+++ b/hwe/j_msg_submit.php
@@ -23,7 +23,7 @@ if(!$v->validate()){
 }
 
 $mailbox = (int)$post['mailbox'];
-$text = StringUtil::cutStringForWidth($post['text'], 199, '');
+$text = StringUtil::neutralize(StringUtil::cutStringForWidth($post['text'], 199, ''));
 
 $session = Session::requireGameLogin([
     'msgID'=>null
diff --git a/hwe/j_troop.php b/hwe/j_troop.php
index 868301ab..02caf873 100644
--- a/hwe/j_troop.php
+++ b/hwe/j_troop.php
@@ -22,7 +22,7 @@ $generalID = $me['no'];
 $nationID = $me['nation'];
 
 if($action == '부대창설'){
-    $name = trim($name);
+    $name = StringUtil::neutralize($name);
     if(!$name){
         Json::die([
             'result'=>false,
@@ -52,7 +52,7 @@ if($action == '부대창설'){
 }
 
 if($action == '부대변경'){
-    $name = trim($name);
+    $name = StringUtil::neutralize($name);
     if(!$name){
         Json::die([
             'result'=>false,
diff --git a/hwe/js/chiefCenter.js b/hwe/js/chiefCenter.js
index 73d1499b..b80de9a5 100644
--- a/hwe/js/chiefCenter.js
+++ b/hwe/js/chiefCenter.js
@@ -77,7 +77,7 @@ function reloadTable(){
             var turnList = plateObj.turn;
             $.each(chiefInfo.turn, function(turnIdx, turnText){
                 turnList[turnIdx].turnTime.text(turnTimeObj.format('hh:mm'));
-                turnList[turnIdx].turnText.text(turnText).css('font-size', '13px');
+                turnList[turnIdx].turnText.html(turnText).css('font-size', '13px');
                 var oWidth = turnList[turnIdx].turnPad.innerWidth();
                 var iWidth = turnList[turnIdx].turnText.outerWidth();
                 if(iWidth > oWidth * 0.95){
diff --git a/hwe/sammo/Command/Nation/che_국기변경.php b/hwe/sammo/Command/Nation/che_국기변경.php
new file mode 100644
index 00000000..1d9da47c
--- /dev/null
+++ b/hwe/sammo/Command/Nation/che_국기변경.php
@@ -0,0 +1,182 @@
+<?php
+
+namespace sammo\Command\Nation;
+
+use\sammo\{
+    DB,
+    Util,
+    JosaUtil,
+    General,
+    DummyGeneral,
+    ActionLogger,
+    GameConst,
+    LastTurn,
+    GameUnitConst,
+    Command,
+    MessageTarget,
+    Message,
+    CityConst
+};
+
+use function\sammo\{
+    getDomesticExpLevelBonus,
+    CriticalRatioDomestic,
+    CriticalScoreEx,
+    GetImageURL,
+    getNationStaticInfo,
+    GetNationColors,
+    newColor,
+};
+
+use \sammo\Constraint\Constraint;
+use \sammo\Constraint\ConstraintHelper;
+use sammo\Event\Action;
+
+class che_국기변경 extends Command\NationCommand
+{
+    static protected $actionName = '국기변경';
+    static public $reqArg = true;
+
+    protected function argTest(): bool
+    {
+        if ($this->arg === null) {
+            return false;
+        }
+
+        if (!key_exists('colorType', $this->arg)) {
+            return false;
+        }
+        $colorType = $this->arg['colorType'];
+        if (!key_exists($colorType, GetNationColors())) {
+            return false;
+        }
+
+        $this->arg = [
+            'colorType' => $colorType,
+        ];
+        return true;
+    }
+
+    protected function init()
+    {
+        $general = $this->generalObj;
+
+        $env = $this->env;
+
+        $this->setCity();
+        $this->setNation(['can_change_flag']);
+
+        $this->minConditionConstraints = [
+            ConstraintHelper::OccupiedCity(),
+            ConstraintHelper::BeChief(),
+            ConstraintHelper::SuppliedCity(),
+            ConstraintHelper::ReqNationValue('can_change_flag', '국기색', '>', 0, '더이상 변경이 불가능합니다.')
+        ];
+    }
+
+    protected function initWithArg()
+    {
+        $this->fullConditionConstraints = [
+            ConstraintHelper::OccupiedCity(),
+            ConstraintHelper::BeChief(),
+            ConstraintHelper::SuppliedCity(),
+            ConstraintHelper::ReqNationValue('can_change_flag', '국기색', '>', 0, '더이상 변경이 불가능합니다.')
+        ];
+    }
+
+    public function getCost(): array
+    {
+        
+        return [0, 0];
+    }
+
+    public function getPreReqTurn(): int
+    {
+        return 0;
+    }
+
+    public function getPostReqTurn(): int
+    {
+        return 0;
+    }
+
+    public function getBrief(): string
+    {
+        $color = GetNationColors()[$this->arg['colorType']];
+        return "【<span style='color:{$color};'>국기</span>】를 변경";
+    }
+
+    public function run(): bool
+    {
+        if (!$this->hasFullConditionMet()) {
+            throw new \RuntimeException('불가능한 커맨드를 강제로 실행 시도');
+        }
+
+        $db = DB::db();
+
+        $general = $this->generalObj;
+        $generalID = $general->getID();
+        $generalName = $general->getName();
+        $date = $general->getTurnTime($general::TURNTIME_HM);
+
+        $colorType = $this->arg['colorType'];
+        $color = GetNationColors()[$colorType];
+
+
+        $nationID = $general->getNationID();
+        $nationName = $this->nation['name'];
+
+        $logger = $general->getLogger();
+
+
+        $general->addExperience(5 * ($this->getPreReqTurn() + 1));
+        $general->addDedication(5 * ($this->getPreReqTurn() + 1));
+
+        $josaYi = JosaUtil::pick($generalName, '이');
+        $josaYiNation = JosaUtil::pick($nationName, '이');
+
+        $db->update('nation', [
+            'color'=>$color,
+            'can_change_flag' => $db->sqleval('can_change_flag - 1'),
+        ], 'nation=%i', $nationID);
+
+        $logger->pushGeneralActionLog("<span style='color:{$color};'><b>국기</b></span>를 변경하였습니다 <1>$date</>");
+        $logger->pushGeneralHistoryLog("<span style='color:{$color};'><b>국기</b></span>를 변경");
+        $logger->pushNationalHistoryLog("<Y>{$generalName}</>{$josaYi} <span style='color:{$color};'><b>국기</b></span>를 변경하였습니다");
+        $logger->pushGlobalActionLog("<Y>{$generalName}</>{$josaYi} <span style='color:{$color};'><b>국기</b></span>를 변경하였습니다");
+        $logger->pushGlobalHistoryLog("<S><b>【국기변경】</b></><D><b>{$nationName}</b></>{$josaYiNation} <span style='color:{$color};'><b>국기</b></span>를 변경하였습니다.");
+
+        $general->setResultTurn(new LastTurn($this->getName(), $this->arg, 0));
+        $general->applyDB($db);
+        return true;
+    }
+
+    public function getJSFiles(): array
+    {
+        return [
+            'js/colorSelect.js'
+        ];
+    }
+
+
+    public function getForm(): string
+    {
+        ob_start();
+?>
+        국기를 변경합니다. 단 1회 가능합니다.<br>
+        색상 : <select class='formInput' name='colorType' id='colorType' size='1'>
+
+            <?php foreach (GetNationColors() as $idx => $color) :
+                /*
+            if($colorUsed[$color] > 0){
+                continue;
+            }
+            */
+            ?>
+                <option value="<?= $idx ?>" style='background-color:<?= $color ?>;color:<?= newColor($color) ?>;'>국가명(<?=$color?>)</option>
+            <?php endforeach; ?> <input type=button id="commonSubmit" value="<?= $this->getName() ?>"><br>
+        <br>
+<?php
+        return ob_get_clean();
+    }
+}
diff --git a/hwe/sammo/Command/Nation/che_국호변경.php b/hwe/sammo/Command/Nation/che_국호변경.php
new file mode 100644
index 00000000..63eecaef
--- /dev/null
+++ b/hwe/sammo/Command/Nation/che_국호변경.php
@@ -0,0 +1,188 @@
+<?php
+
+namespace sammo\Command\Nation;
+
+use\sammo\{
+    DB,
+    Util,
+    Json,
+    JosaUtil,
+    General,
+    DummyGeneral,
+    ActionLogger,
+    GameConst,
+    LastTurn,
+    GameUnitConst,
+    Command,
+    MessageTarget,
+    Message,
+    CityConst
+};
+
+use function\sammo\{
+    getDomesticExpLevelBonus,
+    CriticalRatioDomestic,
+    CriticalScoreEx,
+    GetImageURL,
+    getNationStaticInfo,
+};
+
+use \sammo\Constraint\Constraint;
+use \sammo\Constraint\ConstraintHelper;
+use sammo\Event\Action;
+
+class che_국호변경 extends Command\NationCommand
+{
+    static protected $actionName = '국호변경';
+    static public $reqArg = true;
+
+    protected function argTest(): bool
+    {
+        if ($this->arg === null) {
+            return false;
+        }
+
+        if (!key_exists('nationName', $this->arg)) {
+            return false;
+        }
+        $nationName = $this->arg['nationName'];
+        if (!is_string($nationName)) {
+            return false;
+        }
+        if (mb_strwidth($nationName) > 18 || $nationName == '') {
+            return false;
+        }
+
+        $this->arg = [
+            'nationName' => $nationName,
+        ];
+        return true;
+    }
+
+    protected function init()
+    {
+        $general = $this->generalObj;
+
+        $env = $this->env;
+
+        $this->setCity();
+        $this->setNation(['aux']);
+        $actionName = $this->getName();
+
+        $this->minConditionConstraints = [
+            ConstraintHelper::OccupiedCity(),
+            ConstraintHelper::BeChief(),
+            ConstraintHelper::SuppliedCity(),
+            ConstraintHelper::ReqNationAuxValue("can_{$actionName}", 0, '>', 0, '더이상 변경이 불가능합니다.')
+        ];
+    }
+
+    protected function initWithArg()
+    {
+        $actionName = $this->getName();
+
+        $this->fullConditionConstraints = [
+            ConstraintHelper::OccupiedCity(),
+            ConstraintHelper::BeChief(),
+            ConstraintHelper::SuppliedCity(),
+            ConstraintHelper::ReqNationAuxValue("can_{$actionName}", 0, '>', 0, '더이상 변경이 불가능합니다.')
+        ];
+    }
+
+    public function getCost(): array
+    {
+        
+        return [0, 0];
+    }
+
+    public function getPreReqTurn(): int
+    {
+        return 0;
+    }
+
+    public function getPostReqTurn(): int
+    {
+        return 0;
+    }
+
+    public function getBrief(): string
+    {
+        $newNationName = $this->arg['nationName'];
+        $josaRo = JosaUtil::pick($newNationName, '로');
+        return "국호를 【{$newNationName}】{$josaRo} 변경";
+    }
+
+    public function run(): bool
+    {
+        if (!$this->hasFullConditionMet()) {
+            throw new \RuntimeException('불가능한 커맨드를 강제로 실행 시도');
+        }
+
+        $db = DB::db();
+        $actionName = $this->getName();
+
+        $general = $this->generalObj;
+        $generalID = $general->getID();
+        $generalName = $general->getName();
+        $date = $general->getTurnTime($general::TURNTIME_HM);
+
+        $nationID = $general->getNationID();
+        $nationName = $this->nation['name'];
+
+        $logger = $general->getLogger();
+
+        $newNationName = $this->arg['nationName'];
+
+        if($db->queryFirstField('SELECT name FROM nation WHERE name = %s LIMIT 1', $newNationName)){
+            $text = "이미 같은 국호를 가진 곳이 있습니다. {$actionName} 실패 <1>{$date}</>";
+            $general->getLogger()->pushGeneralActionLog($text);
+            return false;
+        }
+
+        
+        $josaRo = JosaUtil::pick($newNationName, '로');
+
+        $general->addExperience(5 * ($this->getPreReqTurn() + 1));
+        $general->addDedication(5 * ($this->getPreReqTurn() + 1));
+
+        $josaYi = JosaUtil::pick($generalName, '이');
+        $josaYiNation = JosaUtil::pick($nationName, '이');
+
+        $aux = Json::decode($this->nation['aux']);
+        $aux["can_{$actionName}"] = 0;
+
+        $db->update('nation', [
+            'name'=>$newNationName,
+            'aux'=>Json::encode($aux)
+        ], 'nation=%i', $nationID);
+
+        $logger->pushGeneralActionLog("국호를 <D><b>{$newNationName}</b></>{$josaRo} 변경합니다. <1>$date</>");
+        $logger->pushGeneralHistoryLog("국호를 <D><b>{$newNationName}</b></>{$josaRo} 변경");
+        $logger->pushNationalHistoryLog("<Y>{$generalName}</>{$josaYi} 국호를 <D><b>{$newNationName}</b></>{$josaRo} 변경");
+        $logger->pushGlobalActionLog("<Y>{$generalName}</>{$josaYi} 국호를 <D><b>{$newNationName}</b></>{$josaRo} 변경합니다.");
+        $logger->pushGlobalHistoryLog("<S><b>【국호변경】</b></><D><b>{$nationName}</b></>{$josaYiNation} 국호를 <D><b>{$newNationName}</b></>{$josaRo} 변경합니다.");
+
+        $general->setResultTurn(new LastTurn($this->getName(), $this->arg, 0));
+        $general->applyDB($db);
+        return true;
+    }
+
+    public function getJSFiles(): array
+    {
+        return [
+            'js/colorSelect.js'
+        ];
+    }
+
+
+    public function getForm(): string
+    {
+        ob_start();
+?>
+        나라의 이름을 바꿉니다. 황제가 된 후 1회 가능합니다.<br>
+        국명 : <input type='text' class='formInput' name="nationName" id="nationName" size='18' maxlength='18' style='color:white;background-color:black;'> <input type=button id="commonSubmit" value="<?= $this->getName() ?>"><br>
+        <br>
+<?php
+        return ob_get_clean();
+    }
+}
diff --git a/hwe/sammo/Constraint/ConstraintHelper.php b/hwe/sammo/Constraint/ConstraintHelper.php
index 0d6bdde3..82e7e16f 100644
--- a/hwe/sammo/Constraint/ConstraintHelper.php
+++ b/hwe/sammo/Constraint/ConstraintHelper.php
@@ -252,8 +252,8 @@ class ConstraintHelper{
         return [__FUNCTION__, [$key, $keyNick, $comp, $reqVal, $errMsg]];
     }
 
-    static function ReqNationAuxValue($key, string $keyNick, string $comp, $reqVal, ?string $errMsg=null):array{
-        return [__FUNCTION__, [$key, $keyNick, $comp, $reqVal, $errMsg]];
+    static function ReqNationAuxValue($key, $defaultValue, string $comp, $reqVal, string $errMsg):array{
+        return [__FUNCTION__, [$key, $defaultValue, $comp, $reqVal, $errMsg]];
     }
 
     static function ReqTroopMembers():array{
diff --git a/hwe/sammo/Constraint/ReqNationAuxValue.php b/hwe/sammo/Constraint/ReqNationAuxValue.php
index 5a896278..a2f3e4a8 100644
--- a/hwe/sammo/Constraint/ReqNationAuxValue.php
+++ b/hwe/sammo/Constraint/ReqNationAuxValue.php
@@ -9,157 +9,131 @@ use \sammo\Json;
 /**
  * 범용으로 사용 가능한 국가 Aux 변수 검사도구
  */
-class ReqNationAuxValue extends Constraint{
-    const REQ_VALUES = Constraint::REQ_NATION|Constraint::REQ_ARRAY_ARG;
+class ReqNationAuxValue extends Constraint
+{
+    const REQ_VALUES = Constraint::REQ_NATION | Constraint::REQ_ARRAY_ARG;
 
     protected $key;
-    protected $maxKey;
-    protected $keyNick;
+    protected $defaultValue;
     protected $reqVal;
     protected $comp;
     protected $errMsg;
     protected $auxVal;
 
-    public function checkInputValues(bool $throwExeception=true):bool{
-        if(!parent::checkInputValues($throwExeception) && !$throwExeception){
+    public function checkInputValues(bool $throwExeception = true): bool
+    {
+        if (!parent::checkInputValues($throwExeception) && !$throwExeception) {
             return false;
         }
 
-        if(count($this->arg) == 5){
-            [$this->key, $this->keyNick, $comp, $this->reqVal, $this->errMsg] = $this->arg;
+        if (count($this->arg) == 5) {
+            [$this->key, $this->defaultValue, $comp, $this->reqVal, $this->errMsg] = $this->arg;
 
-            if(!in_array($comp, ['>', '>=', '==', '<=', '<', '!=', '===', '!=='])){
-                if(!$throwExeception){return false; }
+            if (!in_array($comp, ['>', '>=', '==', '<=', '<', '!=', '===', '!=='])) {
+                if (!$throwExeception) {
+                    return false;
+                }
                 throw new \InvalidArgumentException("invalid comparator");
             }
-        }
-        else{
-            if(!$throwExeception){return false; }
-            throw new \InvalidArgumentException("require key, keyNick, comp, reqVal[, errMsg]");
+        } else {
+            if (!$throwExeception) {
+                return false;
+            }
+            throw new \InvalidArgumentException("require key, defaultValue, comp, reqVal, errMsg");
         }
 
         $this->comp = $comp;
-        
-        $this->maxKey = $this->key.'_max';
 
-        if(!key_exists('aux', $this->nation)){
-            if(!$throwExeception){return false; }
+        $this->maxKey = $this->key . '_max';
+
+        if (!key_exists('aux', $this->nation)) {
+            if (!$throwExeception) {
+                return false;
+            }
             throw new \InvalidArgumentException("require aux in nation");
         }
 
-        if($this->nation['aux'] === null){
-            if(!$throwExeception){return false; }
+        if ($this->nation['aux'] === null) {
+            if (!$throwExeception) {
+                return false;
+            }
             throw new \InvalidArgumentException("invalid aux in nation(null)");
         }
 
-        if(is_array($this->nation['aux'])){
+        if (is_array($this->nation['aux'])) {
             $this->auxVal = $this->nation['aux'];
-        }
-        else if(is_string($this->nation['aux'])){
+        } else if (is_string($this->nation['aux'])) {
             $this->auxVal = Json::decode($this->nation['aux']);
-        }
-        else{
-            if(!$throwExeception){return false; }
+        } else {
+            if (!$throwExeception) {
+                return false;
+            }
             throw new \InvalidArgumentException("inavlid aux in nation(type)");
         }
 
 
-        if(!key_exists($this->key, $this->auxVal)){
-            if(!$throwExeception){return false; }
+        if (!key_exists($this->key, $this->auxVal) && $this->defaultValue === null) {
+            if (!$throwExeception) {
+                return false;
+            }
             throw new \InvalidArgumentException("require {$this->key} in nation['aux']");
         }
 
-        if(is_numeric($this->reqVal)){
-            $this->isPercent = false;
-        }
-        else if(is_string($this->reqVal)){
-            $this->reqVal = Util::convPercentStrToFloat($this->reqVal);
-            if($this->reqVal === null){
-                if(!$throwExeception){return false; }
-                throw new \InvalidArgumentException("require valid reqVal(percentStr|numeric) format");
+        if (!is_string($this->errMsg)) {
+            if (!$throwExeception) {
+                return false;
             }
-
-            if(!key_exists($this->maxKey, $this->auxVal)){
-                if(!$throwExeception){return false; }
-                throw new \InvalidArgumentException("require {$this->maxKey} in nation['aux']");
-            }
-            $this->isPercent = true;
-        }
-
-        if($this->errMsg!==null && !is_string($this->errMsg)){
-            if(!$throwExeception){return false; }
-                throw new \InvalidArgumentException("{$this->errMsg} must be string or null");
+            throw new \InvalidArgumentException("{$this->errMsg} must be string");
         }
 
         return true;
     }
 
-    public function test():bool{
+    public function test(): bool
+    {
         $this->checkInputValues();
         $this->tested = true;
-        $keyNick = $this->keyNick;
-
-        if ($this->isPercent) {
-            $reqVal = $this->auxVal[$this->maxKey] * $this->reqVal;
-        }
-        else{
-            $reqVal = $this->reqVal;
-        }
 
         $compList = [
             '<'=>function($target, $src){
-                return ($target < $src)?true:'너무 많습니다.';
+                return ($target < $src);
             },
             '<='=>function($target, $src){
-                return ($target <= $src)?true:'너무 많습니다.';
+                return ($target <= $src);
             },
-            '=='=>function($target, $src)use($keyNick){
-                return ($target == $src)?true:"올바르지 않은 {$keyNick} 입니다.";
+            '=='=>function($target, $src){
+                return ($target == $src);
             },
-            '!='=>function($target, $src)use($keyNick){
-                return ($target != $src)?true:"올바르지 않은 {$keyNick} 입니다.";
+            '!='=>function($target, $src){
+                return ($target != $src);
             },
-            '==='=>function($target, $src)use($keyNick){
-                return ($target === $src)?true:"올바르지 않은 {$keyNick} 입니다.";
+            '==='=>function($target, $src){
+                return ($target === $src);
             },
-            '!=='=>function($target, $src)use($keyNick){
-                return ($target !== $src)?true:"올바르지 않은 {$keyNick} 입니다.";
+            '!=='=>function($target, $src){
+                return ($target !== $src);
             },
             '>='=>function($target, $src){
-                if($target >= $src){
-                    return true;
-                }
-                if($src == 1){
-                    return '없습니다';
-                }
-                return '부족합니다.';
+                return ($target >= $src);
             },
             '>'=>function($target, $src){
-                if($target > $src){
-                    return true;
-                }
-                if($src == 0){
-                    return '없습니다';
-                }
-                return '부족합니다.';
+                return ($target > $src);
             },
         ];
 
         $comp = $compList[$this->comp];
-        $result = ($comp)($this->auxVal[$this->key], $reqVal);
+        $result = ($comp)($this->auxVal[$this->key]??$this->defaultValue, $this->reqVal);
+
+        if ($result === true) {
+            return true;
+        }
 
         if($result === true){
             return true;
         }
 
-        if($this->errMsg){
-            $this->reason = $this->errMsg;
-        }
-        else{
-            $josaYi = JosaUtil::pick($keyNick, '이');
-            $this->reason = "{$keyNick}{$josaYi} {$result}";
-        }
+        $this->reason = $this->errMsg;
         
         return false;
     }
-}
\ No newline at end of file
+}
diff --git a/hwe/sammo/GameConstBase.php b/hwe/sammo/GameConstBase.php
index bad78527..83992284 100644
--- a/hwe/sammo/GameConstBase.php
+++ b/hwe/sammo/GameConstBase.php
@@ -329,7 +329,7 @@ class GameConstBase
         ],
         '기타'=>[
             'che_국기변경',
-            //'che_국호변경',
+            'che_국호변경',
         ]
     ];
     public static $retirementYear = 80;
diff --git a/src/sammo/StringUtil.php b/src/sammo/StringUtil.php
index 376b67a3..746e48ed 100644
--- a/src/sammo/StringUtil.php
+++ b/src/sammo/StringUtil.php
@@ -161,8 +161,6 @@ class StringUtil
             $str = StringUtil::subStringForWidth($str, 0, $maxLen);
         }
         $str = htmlspecialchars($str);
-        $str = StringUtil::removeSpecialCharacter($str);
-        $str = WebUtil::htmlPurify($str);
         $str = StringUtil::textStrip($str);
         return $str;
     }