diff --git a/f_install/j_setup_db.php b/f_install/j_setup_db.php
index bc9b1029..910fd2a3 100644
--- a/f_install/j_setup_db.php
+++ b/f_install/j_setup_db.php
@@ -124,9 +124,7 @@ $rootDB->error_handler = 'dbSQLFail';
 $mysqli_obj = $rootDB->get(); //로그인에 실패할 경우 자동으로 dbConnFail()이 실행됨.
 
 if($mysqli_obj->multi_query(file_get_contents(__dir__.'/sql/common_schema.sql'))){
-    do{
-        $mysqli_obj->store_result();
-    } while($mysqli_obj->next_result());
+    while ($mysqli_obj->next_result()) {;}
 }
 
 $rootDB->insert('system', array(
diff --git a/twe/j_install.php b/twe/j_install.php
index 397e3fba..8d910e94 100644
--- a/twe/j_install.php
+++ b/twe/j_install.php
@@ -12,23 +12,41 @@ if($session->userGrade < 5){
     ]);
 }
 
-$turnterm  = Util::toInt(Util::array_get($_POST['turnterm']));
-$sync = Util::toInt(Util::array_get($_POST['sync']));
-$scenario = Util::toInt(Util::array_get($_POST['scenario']));
-$fiction = Util::toInt(Util::array_get($_POST['fiction']));
-$extend = Util::toInt(Util::array_get($_POST['extend']));
-$npcmode = Util::toInt(Util::array_get($_POST['npcmode']));
-$show_img_level = Util::toInt(Util::array_get($_POST['show_img_level']));
-
-
-
-if($turnterm===null || $sync===null || $scenario===null || $fiction===null || $extend===null || $npcmode===null || $show_img_level===null){
+$v = new Validator($_POST);
+$v->rule('required', [
+    'turnterm',
+    'sync',
+    'scenario',
+    'fiction',
+    'extend',
+    'npcmode',
+    'show_img_level'
+])->rule('integer', [
+    'turnterm',
+    'sync',
+    'scenario',
+    'fiction',
+    'extend',
+    'npcmode',
+    'show_img_level'
+]);
+if(!$v->validate()){
+    $errors = array_values((array)$v->errors());
+    $errors = array_map(function($value){return join(', ', $value);}, $errors);
+    $errors = join(', ', $errors);
     Json::die([
         'result'=>false,
-        'reason'=>'입력 값이 올바르지 않습니다'
+        'reason'=>$errors
     ]);
 }
 
+$turnterm  = (int)$_POST['turnterm'];
+$sync = (int)$_POST['sync'];
+$scenario = (int)$_POST['scenario'];
+$fiction = (int)$_POST['fiction'];
+$extend = (int)$_POST['extend'];
+$npcmode = (int)$_POST['npcmode'];
+$show_img_level = (int)$_POST['show_img_level'];
 
 if(120 % $turnterm != 0){
     Json::die([
@@ -39,20 +57,13 @@ if(120 % $turnterm != 0){
 
 $mysqli_obj = DB::db()->get();
 
+
 if($mysqli_obj->multi_query(file_get_contents(__dir__.'/sql/reset.sql'))){
-    do{
-        if(!$mysqli_obj->store_result()){
-            break;
-        }
-    } while($mysqli_obj->next_result());
+    while ($mysqli_obj->next_result()) {;}
 }
 
 if($mysqli_obj->multi_query(file_get_contents(__dir__.'/sql/schema.sql'))){
-    do{
-        if(!$mysqli_obj->store_result()){
-            break;
-        }
-    } while($mysqli_obj->next_result());
+    while ($mysqli_obj->next_result()) {;}
 }
 
 //TODO:script
diff --git a/twe/j_install_db.php b/twe/j_install_db.php
index 087436c0..93719572 100644
--- a/twe/j_install_db.php
+++ b/twe/j_install_db.php
@@ -30,11 +30,7 @@ if($fullReset && class_exists('\\sammo\\DB')){
     $mysqli_obj = DB::db()->get();
 
     if($mysqli_obj->multi_query(file_get_contents(__dir__.'/sql/reset.sql'))){
-        do{
-            if(!$mysqli_obj->store_result()){
-                break;
-            }
-        } while($mysqli_obj->next_result());
+        while ($mysqli_obj->next_result()) {;}
     }
 }