diff --git a/f_install/sql/common_schema.sql b/f_install/sql/common_schema.sql
index 7e09f2a8..973a5b6f 100644
--- a/f_install/sql/common_schema.sql
+++ b/f_install/sql/common_schema.sql
@@ -20,16 +20,18 @@ ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
 CREATE TABLE `member` (
 	`NO` INT(11) NOT NULL AUTO_INCREMENT,
 	`oauth_id` BIGINT(20) NULL DEFAULT NULL,
-	`oauth_type` ENUM('NONE','KAKAO') NOT NULL,
 	`ID` VARCHAR(64) NOT NULL,
 	`EMAIL` VARCHAR(64) NULL DEFAULT NULL,
+	`oauth_type` ENUM('NONE','KAKAO') NOT NULL,
+	`oauth_info` TEXT NOT NULL DEFAULT '{}',
+	`token_valid_until` DATETIME NULL DEFAULT NULL,
 	`PW` CHAR(128) NOT NULL,
 	`salt` CHAR(16) NOT NULL,
 	`third_use` INT(1) NOT NULL DEFAULT '0',
 	`NAME` VARCHAR(64) NOT NULL,
 	`PICTURE` VARCHAR(64) NULL DEFAULT 'default.jpg',
 	`IMGSVR` INT(1) NULL DEFAULT '0',
-	`acl` text NOT NULL DEFAULT '{}' COMMENT 'json',
+	`acl` TEXT NOT NULL DEFAULT '{}' COMMENT 'json',
 	`GRADE` INT(1) NULL DEFAULT '1',
 	`REG_NUM` INT(3) NULL DEFAULT '0',
 	`REG_DATE` DATETIME NOT NULL,
diff --git a/i_entrance/j_get_user_info.php b/i_entrance/j_get_user_info.php
index 757bf350..2c1bb432 100644
--- a/i_entrance/j_get_user_info.php
+++ b/i_entrance/j_get_user_info.php
@@ -9,7 +9,7 @@ $userID = Session::getUserID();
 // 외부 파라미터
 
 $db = RootDB::db();
-$member = $db->queryFirstRow('SELECT `id`, `name`, `grade`, `picture`, reg_date, third_use, acl, oauth_type, oauth_info FROM `member` WHERE `NO` = %i', $userID);
+$member = $db->queryFirstRow('SELECT `id`, `name`, `grade`, `picture`, reg_date, third_use, acl, oauth_type, token_valid_until FROM `member` WHERE `NO` = %i', $userID);
 
 if(!$member['picture']){
     $picture = ServConfig::getSharedIconPath().'/default.jpg';
@@ -30,8 +30,7 @@ else{
     }
 }
 
-$oauthInfo = Json::decode($member['oauth_info'])??[];
-$loginTokenValid = $oauthInfo['OTPValidUntil']??null;
+$tokenValidUntil = $member['token_valid_until'];
 
 if($member['grade'] == 6) {
     $grade = '운영자';
@@ -86,6 +85,6 @@ Json::die([
     'third_use'=>($member['third_use']!=0),
     'acl'=>$acl,
     'oauth_type'=>$member['oauth_type'],
-    'login_token_valid'=>$loginTokenValid
+    'token_valid_until'=>$tokenValidUntil
 
 ]);
diff --git a/index.php b/index.php
index 0e161a0c..0e5db2e4 100644
--- a/index.php
+++ b/index.php
@@ -217,7 +217,7 @@ function postOAuthResult(result){
                 <div>
                     인증 코드가 필요합니다.<br><br>
                     카카오톡의 '나와의 채팅'란을 확인해 주세요.<br>
-                    (별도의 알림[소리, 진동, 숫자]가 발생하지 않습니다.)
+                    (별도의 알림[소리, 진동, 숫자]이 발생하지 않습니다.)
                 </div>
                 <div class="input-group mt-4" role="group">
                     <div class="input-group-prepend">
diff --git a/j_login.php b/j_login.php
index fb18c875..ac28aa51 100644
--- a/j_login.php
+++ b/j_login.php
@@ -41,7 +41,7 @@ function kakaoOAuthCheck(array $userInfo) : ?array {
     $refreshTokenValidUntil = $oauthInfo['refreshTokenValidUntil']??null;
     $OTPValue = $oauthInfo['OTPValue']??null;
     $OTPTrialUntil = $oauthInfo['OTPTrialUntil']??null;
-    $OTPValidUntil = $oauthInfo['OTPValidUntil']??null;
+    $tokenValidUntil = $member['token_valid_until'];
 
     if(!$accessToken || !$refreshToken || !$accessTokenValidUntil || !$refreshTokenValidUntil){
         return [false, 'OAuth 정보가 보관되어 있지 않습니다. 카카오 로그인을 수행해 주세요.'];
@@ -79,7 +79,7 @@ function kakaoOAuthCheck(array $userInfo) : ?array {
         ], 'no=%i', $userInfo['no']);
     }
 
-    if($OTPValidUntil && $now <= $OTPValidUntil){
+    if($tokenValidUntil && $now <= $tokenValidUntil){
         return null;
     }
 
diff --git a/js/user_info.js b/js/user_info.js
index 0ed86887..8f31836d 100644
--- a/js/user_info.js
+++ b/js/user_info.js
@@ -22,7 +22,7 @@ function fillUserInfo(result){
     }
     $('#slot_oauth_type').text(result.oauth_type);
     if(result.oauth_type != 'NONE'){
-        $('#slot_token_valid_until').text(result.login_token_valid);
+        $('#slot_token_valid_until').text(result.token_valid_until);
     }
     else{
         $('#slot_token_valid_until').parent().html('');
diff --git a/oauth_kakao/j_check_OTP.php b/oauth_kakao/j_check_OTP.php
index 7aecc402..bf8b72dc 100644
--- a/oauth_kakao/j_check_OTP.php
+++ b/oauth_kakao/j_check_OTP.php
@@ -78,15 +78,15 @@ if($OTPValue != $otp){
     ]);
 }
 
-$OTPValidUntil = TimeUtil::DatetimeFromNowDay(10);
+$tokenValidUntil = TimeUtil::DatetimeFromNowDay(10);
 $session->setReqOTP(false);
-$oauthInfo['OTPValidUntil'] = $OTPValidUntil;
 RootDB::db()->update('member', [
-    'oauth_info'=>Json::encode($oauthInfo)
+    'oauth_info'=>Json::encode($oauthInfo),
+    'token_valid_until'=>$tokenValidUntil,
 ], 'no=%i', $userNo);
 
 Json::die([
     'result'=>true,
     'reset'=>false,
-    'reason'=>"로그인을 성공했습니다. {$OTPValidUntil}까지 유효합니다."
+    'reason'=>"로그인을 성공했습니다. {$tokenValidUntil}까지 유효합니다."
 ]);
\ No newline at end of file
diff --git a/oauth_kakao/j_login_oauth.php b/oauth_kakao/j_login_oauth.php
index cf0200d9..1eb6601d 100644
--- a/oauth_kakao/j_login_oauth.php
+++ b/oauth_kakao/j_login_oauth.php
@@ -117,7 +117,7 @@ if(!$email){
 
 
 $userInfo = $RootDB->queryFirstRow(
-    'SELECT `no`, `id`, `name`, `grade`, `delete_after`, `acl`, oauth_info from member where email=%s',$email);
+    'SELECT `no`, `id`, `name`, `grade`, `delete_after`, `acl`, oauth_info, token_valid_until from member where email=%s',$email);
 
 if(!$userInfo){
     $restAPI->unlink();
@@ -164,9 +164,9 @@ RootDB::db()->update('member', [
 ], 'no=%i', $userInfo['no']);
 
 
-$OTPValidUntil = $oauthInfo['OTPValidUntil']??null;
+$tokenValidUntil = $userInfo['token_valid_until'];
 
-if(!$OTPValidUntil || $OTPValidUntil < $now){
+if(!$tokenValidUntil || $tokenValidUntil < $now){
     if(!createOTPbyUserNO($userInfo['no'])){
         Json::die([
             'result'=>false,
diff --git a/oauth_kakao/j_reset_token.php b/oauth_kakao/j_reset_token.php
index d8abaa11..92f6c143 100644
--- a/oauth_kakao/j_reset_token.php
+++ b/oauth_kakao/j_reset_token.php
@@ -12,29 +12,28 @@ $session = Session::requireLogin([
 
 $userID = Session::getUserID();
 
-$oauthInfo = Json::decode(RootDB::db()->queryFirstField('SELECT oauth_info from member where no=%i',$userID))??[];
-if(!$oauthInfo){
+$tokenValidUntil = RootDB::db()->queryFirstField('SELECT token_valid_until from member where no=%i',$userID);
+
+if(!$tokenValidUntil){
     Json::die([
         'result'=>false,
         'reason'=>'초기화 가능한 로그인 상태가 아닙니다.'
     ]);
 }
 
-$OTPValidUntil = $oauthInfo['OTPValidUntil']??null;
-
 $now = TimeUtil::DatetimeNow();
 $expectedDate = TimeUtil::DatetimeFromNowDay(5);
 
-if($expectedDate <= $OTPValidUntil){
+if($expectedDate <= $tokenValidUntil){
     Json::die([
         'result'=>false,
         'reason'=>'아직 연장 가능하지 않습니다.'
     ]);
 }
 
-unset($oauthInfo['OTPValidUntil']);
+unset($oauthInfo['tokenValidUntil']);
 RootDB::db()->update('member', [
-    'oauth_info'=>Json::encode($oauthInfo)
+    'token_valid_until'=> null
 ], 'no=%i', $userID);
 
 $session->logout();