diff --git a/hwe/func.php b/hwe/func.php
index 37eb5792..be532ebb 100644
--- a/hwe/func.php
+++ b/hwe/func.php
@@ -659,8 +659,10 @@ function commandTable() {
     commandGroup("======= 개 인 ========");
     if($me['level'] >= 1) {
         addCommand("단련(자금$develcost, 군량$develcost)", 41);
+        addCommand("숙련전환(통솔경험, 자금$develcost, 군량$develcost)", 58);
     } else {
         addCommand("단련(자금$develcost, 군량$develcost)", 41, 0);
+        addCommand("숙련전환(통솔경험, 자금$develcost, 군량$develcost)", 58, 0);
     }
     addCommand("견문(자금?, 군량?, 경험치?)", 42);
     if($city['trade'] > 0 || $me['special'] == 30) {
diff --git a/hwe/func_command.php b/hwe/func_command.php
index 1d569fd3..02ad584e 100644
--- a/hwe/func_command.php
+++ b/hwe/func_command.php
@@ -251,7 +251,9 @@ function getTurn(array $general, $type, $font=1) {
             case 57: //모반 시도
                 $str[$i] = "모반 시도";
                 break;
-
+            case 58: //숙련 전환
+                $str[$i] = "숙련 전환";
+                break;
             default:
                 $str[$i] = "????";
                 break;
@@ -623,6 +625,8 @@ function processCommand($no) {
             case 55: process_55($general); break; //거병
             case 56: process_56($general); break; //해산
             case 57: process_57($general); break; //모반 시도
+
+            case 58: process_58($general); break; //숙련 전환
         }
     }
 }
diff --git a/hwe/func_process.php b/hwe/func_process.php
index 6f197759..e08616cd 100644
--- a/hwe/func_process.php
+++ b/hwe/func_process.php
@@ -2528,6 +2528,73 @@ function process_50(&$general) {
     pushGenLog($general, $log);
 }
 
+
+function process_58(&$general) {
+    $db = DB::db();
+    $gameStor = KVStorage::getStorage($db, 'game_env');
+
+    $log = [];
+    $alllog = [];
+    $history = [];
+    $date = substr($general['turntime'],11,5);
+
+    $admin = $gameStor->getValues(['year', 'month', 'develcost']);
+
+    $command = DecodeCommand($general['turn0']);
+
+    $fromDexIdx = $command[1];
+    $toDexIdx = $command[2];
+
+
+    
+
+    if($general['nation'] == 0) {
+        $log[] = "<C>●</>{$admin['month']}월:재야입니다. 숙련 전환 실패. <1>$date</>";
+    } elseif($general['gold'] < $admin['develcost']) {
+        $log[] = "<C>●</>{$admin['month']}월:자금이 모자랍니다. 숙련 전환 실패. <1>$date</>";
+    } elseif($general['rice'] < $admin['develcost']) {
+        $log[] = "<C>●</>{$admin['month']}월:군량이 모자랍니다. 숙련 전환 실패. <1>$date</>";
+    } elseif($fromDexIdx < 0 || $fromDexIdx > 4 || $toDexIdx < 0 || $toDexIdx > 4){
+        $log[] = "<C>●</>{$admin['month']}월:올바르지 않은 병종 코드입니다. 숙련 전환 실패. <1>$date</>";
+    } elseif($general['dex'.($fromDexIdx*10)] == 0) {
+        $log[] = "<C>●</>{$admin['month']}월:전환할 병종 숙련이 없습니다. 숙련 전환 실패. <1>$date</>";
+    } else {
+
+        $fromOrigDex = $general['dex'.($fromDexIdx*10)];
+        $toOrigDex = $general['dex'.($toDexIdx*10)];
+
+        $cutDex = Util::toInt($fromOrigDex * 0.3);
+        $fromNewDex = $fromOrigDex - $cutDex;
+        $addDex = Util::toInt($cutDex * 2 / 3);
+        $toNewDex = $toOrigDex + $addDex;
+
+        $exp = 10;
+        $exp = CharExperience($exp, $general['personal']);
+
+        $fromCrewStr = GameUnitConst::allType()[$fromDexIdx];
+        $toCrewStr = GameUnitConst::allType()[$toDexIdx];
+
+
+        $josaUl = JosaUtil::pick($cutDex, '을');
+        $josaRo = JosaUtil::pick($addDex, '로');
+        $log[] = "<C>●</>{$admin['month']}월:$fromCrewStr 숙련 {$cutDex}{$josaUl} $toCrewStr 숙련 {$addDex}{$josaRo} 전환했습니다. <1>$date</>";
+
+        $general['leader2'] += 2;
+
+        $db->update('general', [
+            'resturn'=>'SUCCESS',
+            'gold'=>$db->sqleval('gold-%i', $admin['develcost']),
+            'rice'=>$db->sqleval('rice-%i', $admin['develcost']),
+            'experience'=>$db->sqleval('experience+%i',$exp),
+            'leader2'=>$general['leader2'],
+            'dex'.($fromDexIdx*10)=>$fromNewDex,
+            'dex'.($toDexIdx*10)=>$toNewDex,
+        ], 'no=%i', $general['no']);
+    }
+    pushGenLog($general, $log);
+}
+
+
 function process_99(&$general) {
     $db = DB::db();
     $gameStor = KVStorage::getStorage($db, 'game_env');
diff --git a/hwe/preprocessing.php b/hwe/preprocessing.php
index 3d884940..af363d27 100644
--- a/hwe/preprocessing.php
+++ b/hwe/preprocessing.php
@@ -98,6 +98,7 @@ switch($commandtype) {
     case 55: command_Single($turn, 55); break; //거병
     case 56: command_Single($turn, 56); break; //해산
     case 57: command_Single($turn, 57); break; //모반 시도
+//    case 58: command_Single($turn, 58); break; //숙련 전환
 
 //    case 61: command_61($turn, 61); break; //불가침
 //    case 62: command_62($turn, 62); break; //선포
diff --git a/hwe/processing.php b/hwe/processing.php
index 7cdf0468..3e2d2170 100644
--- a/hwe/processing.php
+++ b/hwe/processing.php
@@ -95,6 +95,7 @@ switch($commandtype) {
     case 55: command_Single($turn, 55); break; //거병
     case 56: command_Single($turn, 56); break; //해산
     case 57: command_Single($turn, 57); break; //모반 시도
+    case 58: command_58(    $turn, 58); break; //숙련 전환
 
     case 61: command_61($turn, 61); break; //불가침
     case 62: command_62($turn, 62); break; //선포
@@ -1724,6 +1725,56 @@ function command_54($turn, $command) {
     ender();
 }
 
+function command_58($turn, $command) {
+    $db = DB::db();
+    $connect=$db->get();
+    $userID = Session::getUserID();
+
+    starter("숙련 전환");
+
+    $dexVals = $db->queryFirstList('SELECT dex0, dex10, dex20, dex30, dex40 FROM general WHERE owner = %i', $userID);
+
+    $dexTexts = [];
+    foreach($dexVals as $idx => $val){
+        $prevDexLevel = getDexCall($val);
+        $newDexLevel = getDexCall(Util::toInt($val * 0.7));
+        $addDex = Util::toInt(($val - $val * 0.7) * 0.5);
+        $dexTexts[$idx] = "$prevDexLevel ⇒ $newDexLevel, {$addDex} 전환";
+    }
+
+    echo "
+본인의 특정 병종 숙련을 30% 줄이고, 줄어든 숙련 중 2/3(20%p)를 다른 병종 숙련으로 전환합니다.<br>
+<form name=form1 action=c_double.php method=post>
+<select name=double size=1 style=color:white;background-color:black>
+    <option value=0>보병 ({$dexTexts[0]})</option>
+    <option value=1>궁병 ({$dexTexts[1]})</option>
+    <option value=2>기병 ({$dexTexts[2]})</option>
+    <option value=3>귀병 ({$dexTexts[3]})</option>
+    <option value=4>차병 ({$dexTexts[4]})</option>
+</select>
+숙련을 
+<select name=third size=1 style=color:white;background-color:black>
+    <option value=0>보병 ({$dexVals[0]})</option>
+    <option value=1>궁병 ({$dexVals[1]})</option>
+    <option value=2>기병 ({$dexVals[2]})</option>
+    <option value=3>귀병 ({$dexVals[3]})</option>
+    <option value=4>차병 ({$dexVals[4]})</option>
+</select>
+으로
+<input type=submit value=전환>
+<input type=hidden name=command value=$command>";
+    for($i=0; $i < count($turn); $i++) {
+        echo "
+            <input type=hidden name=turn[] value=$turn[$i]>";
+    }
+
+    echo "
+</form>
+";
+
+    ender();
+}
+
 function command_61($turn, $command) {
     $db = DB::db();
     $connect=$db->get();