diff --git a/hwe/func.php b/hwe/func.php
index ffe942cc..440a7a10 100644
--- a/hwe/func.php
+++ b/hwe/func.php
@@ -1505,9 +1505,18 @@ function tryUniqueItemLottery(General $general, string $acquireType='아이템')
         return false;
     }
 
-    if($general->getVar('npc') > 6 || $general->getVar('weap') > 6 || $general->getVar('book') > 6 || $general->getVar('item') > 6){
+    if($general->getVar('npc') > 6){
         return false;
     }
+    
+    foreach($general->getItems() as $item){
+        if(!$item){
+            continue;
+        }
+        if(!$item->isBuyable()){
+            return false;
+        }
+    }
 
     $scenario = $gameStor->scenario;
     $genCount = $db->queryFirstField('SELECT count(*) FROM general WHERE npc<2');
@@ -1537,24 +1546,35 @@ function tryUniqueItemLottery(General $general, string $acquireType='아이템')
 
     //아이템 습득 상황
     $availableUnique = [];
-    $itemTypes = [
-        'horse'=>'getItemName',
-        'weap'=>'getItemName',
-        'book'=>'getItemName',
-        'item'=>'getItemName'
-    ];
-    $itemCodeList = range(7, 26); // [7, 26] 20개
     
-    foreach($itemTypes as $itemType=>$itemNameFunc){
-        foreach($itemCodeList as $itemCode){
-            $availableUnique["{$itemType}_{$itemCode}"] = [$itemType, $itemCode];
+    //TODO: 너무 바보 같다. 장기적으로는 유니크 아이템 테이블 같은게 필요하지 않을까?
+    //일단은 '획득' 시에만 동작하므로 이대로 사용하기로...
+    $occupiedUnique = [];
+    
+    foreach (array_keys(GameConst::$allItems) as $itemType) {
+        foreach($db->queryAllLists('SELECT %b, count(*) as cnt FROM general GROUP BY %b', $itemType, $itemType) as [$itemCode, $cnt]){
+            $itemClass = buildItemClass($itemCode);
+            if(!$itemClass){
+                continue;
+            }
+            if($itemClass->isBuyable()){
+                continue;
+            }
+            $occupiedUnique[$itemCode] = $cnt;
         }
     }
 
-    //TODO: 너무 바보 같다. 장기적으로는 유니크 아이템 테이블 같은게 필요하지 않을까?
-    foreach ($itemTypes as $itemType=>$itemNameFunc) {
-        foreach($db->queryFirstColumn('SELECT %b FROM general WHERE %b > 6', $itemType, $itemType) as $itemCode){
-            unset($availableUnique["{$itemType}_{$itemCode}"]);
+    foreach(GameConst::$allItems as $itemType=>$itemCategories){
+        foreach($itemCategories as $itemCode => $cnt){
+            if(!key_exists($itemCode, $occupiedUnique)){
+                $availableUnique[] = [[$itemType, $itemCode], $cnt];
+                continue;
+            }
+
+            $remain = $cnt - $occupiedUnique[$itemCode];
+            if($remain > 0){
+                $availableUnique[] = [[$itemType, $itemCode], $cnt];
+            }
         }
     }
 
@@ -1562,12 +1582,12 @@ function tryUniqueItemLottery(General $general, string $acquireType='아이템')
         return false;
     }
 
-    [$itemType, $itemCode] = Util::choiceRandom($availableUnique);
+    [$itemType, $itemCode] = Util::choiceRandomUsingWeightPair($availableUnique);
     
     $nationName = $general->getStaticNation()['name'];
     $generalName = $general->getNation();
     $josaYi = JosaUtil::pick($generalName, '이');
-    $itemName = ($itemTypes[$itemType])($itemCode);
+    $itemName = getItemName($itemCode);
     $josaUl = JosaUtil::pick($itemName, '을');
 
 
diff --git a/hwe/sammo/ActionItem/che_계략_이추.php b/hwe/sammo/ActionItem/che_계략_이추.php
index d11a57a2..028af996 100644
--- a/hwe/sammo/ActionItem/che_계략_이추.php
+++ b/hwe/sammo/ActionItem/che_계략_이추.php
@@ -11,6 +11,7 @@ class che_계략_이추 extends \sammo\BaseItem{
     protected static $cost = 1000;
     protected static $consumable = true;
     protected static $buyable = true;
+    protected static $reqSecu = 1000;
 
     public function onCalcDomestic(string $turnType, string $varType, float $value, $aux=null):float{
         if($turnType == '계략'){
diff --git a/hwe/sammo/ActionItem/che_계략_향낭.php b/hwe/sammo/ActionItem/che_계략_향낭.php
index a1dd28a1..353eed31 100644
--- a/hwe/sammo/ActionItem/che_계략_향낭.php
+++ b/hwe/sammo/ActionItem/che_계략_향낭.php
@@ -11,6 +11,7 @@ class che_계략_향낭 extends \sammo\BaseItem{
     protected static $cost = 3000;
     protected static $consumable = true;
     protected static $buyable = true;
+    protected static $reqSecu = 2000;
 
     public function onCalcDomestic(string $turnType, string $varType, float $value, $aux=null):float{
         if($turnType == '계략'){
diff --git a/hwe/sammo/ActionItem/che_명마_01_노기.php b/hwe/sammo/ActionItem/che_명마_01_노기.php
index e9f2186b..d6ab2ff3 100644
--- a/hwe/sammo/ActionItem/che_명마_01_노기.php
+++ b/hwe/sammo/ActionItem/che_명마_01_노기.php
@@ -6,4 +6,5 @@ use \sammo\General;
 class che_명마_01_노기 extends \sammo\BaseStatItem{
     protected static $cost = 1000;
     protected static $buyable = true;
+    protected static $reqSecu = 1000;
 }
\ No newline at end of file
diff --git a/hwe/sammo/ActionItem/che_명마_02_조랑.php b/hwe/sammo/ActionItem/che_명마_02_조랑.php
index b77f8a78..ca5f0e2c 100644
--- a/hwe/sammo/ActionItem/che_명마_02_조랑.php
+++ b/hwe/sammo/ActionItem/che_명마_02_조랑.php
@@ -6,4 +6,5 @@ use \sammo\General;
 class che_명마_02_조랑 extends \sammo\BaseStatItem{
     protected static $cost = 3000;
     protected static $buyable = true;
+    protected static $reqSecu = 2000;
 }
\ No newline at end of file
diff --git a/hwe/sammo/ActionItem/che_명마_03_노새.php b/hwe/sammo/ActionItem/che_명마_03_노새.php
index 04b151c6..0fc928da 100644
--- a/hwe/sammo/ActionItem/che_명마_03_노새.php
+++ b/hwe/sammo/ActionItem/che_명마_03_노새.php
@@ -6,4 +6,5 @@ use \sammo\General;
 class che_명마_03_노새 extends \sammo\BaseStatItem{
     protected static $cost = 6000;
     protected static $buyable = true;
+    protected static $reqSecu = 3000;
 }
\ No newline at end of file
diff --git a/hwe/sammo/ActionItem/che_명마_04_나귀.php b/hwe/sammo/ActionItem/che_명마_04_나귀.php
index a96b975b..116a7f47 100644
--- a/hwe/sammo/ActionItem/che_명마_04_나귀.php
+++ b/hwe/sammo/ActionItem/che_명마_04_나귀.php
@@ -6,4 +6,5 @@ use \sammo\General;
 class che_명마_04_나귀 extends \sammo\BaseStatItem{
     protected static $cost = 10000;
     protected static $buyable = true;
+    protected static $reqSecu = 4000;
 }
\ No newline at end of file
diff --git a/hwe/sammo/ActionItem/che_명마_05_갈색마.php b/hwe/sammo/ActionItem/che_명마_05_갈색마.php
index 473db0eb..4ad1900c 100644
--- a/hwe/sammo/ActionItem/che_명마_05_갈색마.php
+++ b/hwe/sammo/ActionItem/che_명마_05_갈색마.php
@@ -6,4 +6,5 @@ use \sammo\General;
 class che_명마_05_갈색마 extends \sammo\BaseStatItem{
     protected static $cost = 15000;
     protected static $buyable = true;
+    protected static $reqSecu = 5000;
 }
\ No newline at end of file
diff --git a/hwe/sammo/ActionItem/che_명마_06_흑색마.php b/hwe/sammo/ActionItem/che_명마_06_흑색마.php
index 6f6748d4..fd5f9046 100644
--- a/hwe/sammo/ActionItem/che_명마_06_흑색마.php
+++ b/hwe/sammo/ActionItem/che_명마_06_흑색마.php
@@ -6,4 +6,5 @@ use \sammo\General;
 class che_명마_06_흑색마 extends \sammo\BaseStatItem{
     protected static $cost = 21000;
     protected static $buyable = true;
+    protected static $reqSecu = 6000;
 }
\ No newline at end of file
diff --git a/hwe/sammo/ActionItem/che_무기_01_단도.php b/hwe/sammo/ActionItem/che_무기_01_단도.php
index f30ac47d..9e1aa5a9 100644
--- a/hwe/sammo/ActionItem/che_무기_01_단도.php
+++ b/hwe/sammo/ActionItem/che_무기_01_단도.php
@@ -6,4 +6,5 @@ use \sammo\General;
 class che_무기_01_단도 extends \sammo\BaseStatItem{
     protected static $cost = 1000;
     protected static $buyable = true;
+    protected static $reqSecu = 1000;
 }
\ No newline at end of file
diff --git a/hwe/sammo/ActionItem/che_무기_02_단궁.php b/hwe/sammo/ActionItem/che_무기_02_단궁.php
index ffbc1090..249c2aee 100644
--- a/hwe/sammo/ActionItem/che_무기_02_단궁.php
+++ b/hwe/sammo/ActionItem/che_무기_02_단궁.php
@@ -6,4 +6,5 @@ use \sammo\General;
 class che_무기_02_단궁 extends \sammo\BaseStatItem{
     protected static $cost = 3000;
     protected static $buyable = true;
+    protected static $reqSecu = 2000;
 }
\ No newline at end of file
diff --git a/hwe/sammo/ActionItem/che_무기_03_단극.php b/hwe/sammo/ActionItem/che_무기_03_단극.php
index 71fa4dcb..a61f01e4 100644
--- a/hwe/sammo/ActionItem/che_무기_03_단극.php
+++ b/hwe/sammo/ActionItem/che_무기_03_단극.php
@@ -6,4 +6,5 @@ use \sammo\General;
 class che_무기_03_단극 extends \sammo\BaseStatItem{
     protected static $cost = 6000;
     protected static $buyable = true;
+    protected static $reqSecu = 3000;
 }
\ No newline at end of file
diff --git a/hwe/sammo/ActionItem/che_무기_04_목검.php b/hwe/sammo/ActionItem/che_무기_04_목검.php
index c3342a0f..ab24db35 100644
--- a/hwe/sammo/ActionItem/che_무기_04_목검.php
+++ b/hwe/sammo/ActionItem/che_무기_04_목검.php
@@ -6,4 +6,5 @@ use \sammo\General;
 class che_무기_04_목검 extends \sammo\BaseStatItem{
     protected static $cost = 10000;
     protected static $buyable = true;
+    protected static $reqSecu = 4000;
 }
\ No newline at end of file
diff --git a/hwe/sammo/ActionItem/che_무기_05_죽창.php b/hwe/sammo/ActionItem/che_무기_05_죽창.php
index 82965a7a..1b0a0210 100644
--- a/hwe/sammo/ActionItem/che_무기_05_죽창.php
+++ b/hwe/sammo/ActionItem/che_무기_05_죽창.php
@@ -6,4 +6,5 @@ use \sammo\General;
 class che_무기_05_죽창 extends \sammo\BaseStatItem{
     protected static $cost = 15000;
     protected static $buyable = true;
+    protected static $reqSecu = 5000;
 }
\ No newline at end of file
diff --git a/hwe/sammo/ActionItem/che_무기_06_소부.php b/hwe/sammo/ActionItem/che_무기_06_소부.php
index 414d354b..ca99d3a8 100644
--- a/hwe/sammo/ActionItem/che_무기_06_소부.php
+++ b/hwe/sammo/ActionItem/che_무기_06_소부.php
@@ -6,4 +6,5 @@ use \sammo\General;
 class che_무기_06_소부 extends \sammo\BaseStatItem{
     protected static $cost = 21000;
     protected static $buyable = true;
+    protected static $reqSecu = 6000;
 }
\ No newline at end of file
diff --git a/hwe/sammo/ActionItem/che_사기_탁주.php b/hwe/sammo/ActionItem/che_사기_탁주.php
index f3758e19..50f75844 100644
--- a/hwe/sammo/ActionItem/che_사기_탁주.php
+++ b/hwe/sammo/ActionItem/che_사기_탁주.php
@@ -12,6 +12,7 @@ class che_사기_탁주 extends \sammo\BaseItem{
     protected static $cost = 1000;
     protected static $consumable = true;
     protected static $buyable = true;
+    protected static $reqSecu = 1000;
 
     public function getBattleInitSkillTriggerList(WarUnit $unit):?WarUnitTriggerCaller{
         return new WarUnitTriggerCaller(
diff --git a/hwe/sammo/ActionItem/che_서적_01_효경전.php b/hwe/sammo/ActionItem/che_서적_01_효경전.php
index a566b6dc..f5f919bb 100644
--- a/hwe/sammo/ActionItem/che_서적_01_효경전.php
+++ b/hwe/sammo/ActionItem/che_서적_01_효경전.php
@@ -6,4 +6,5 @@ use \sammo\General;
 class che_서적_01_효경전 extends \sammo\BaseStatItem{
     protected static $cost = 1000;
     protected static $buyable = true;
+    protected static $reqSecu = 1000;
 }
\ No newline at end of file
diff --git a/hwe/sammo/ActionItem/che_서적_02_회남자.php b/hwe/sammo/ActionItem/che_서적_02_회남자.php
index ad6b7f48..85cc76ed 100644
--- a/hwe/sammo/ActionItem/che_서적_02_회남자.php
+++ b/hwe/sammo/ActionItem/che_서적_02_회남자.php
@@ -6,4 +6,5 @@ use \sammo\General;
 class che_서적_02_회남자 extends \sammo\BaseStatItem{
     protected static $cost = 3000;
     protected static $buyable = true;
+    protected static $reqSecu = 2000;
 }
\ No newline at end of file
diff --git a/hwe/sammo/ActionItem/che_서적_03_변도론.php b/hwe/sammo/ActionItem/che_서적_03_변도론.php
index 2fa985a3..11249809 100644
--- a/hwe/sammo/ActionItem/che_서적_03_변도론.php
+++ b/hwe/sammo/ActionItem/che_서적_03_변도론.php
@@ -6,4 +6,5 @@ use \sammo\General;
 class che_서적_03_변도론 extends \sammo\BaseStatItem{
     protected static $cost = 6000;
     protected static $buyable = true;
+    protected static $reqSecu = 3000;
 }
\ No newline at end of file
diff --git a/hwe/sammo/ActionItem/che_서적_04_건상역주.php b/hwe/sammo/ActionItem/che_서적_04_건상역주.php
index c9bfa2b1..c61eabf6 100644
--- a/hwe/sammo/ActionItem/che_서적_04_건상역주.php
+++ b/hwe/sammo/ActionItem/che_서적_04_건상역주.php
@@ -6,4 +6,5 @@ use \sammo\General;
 class che_서적_04_건상역주 extends \sammo\BaseStatItem{
     protected static $cost = 10000;
     protected static $buyable = true;
+    protected static $reqSecu = 4000;
 }
\ No newline at end of file
diff --git a/hwe/sammo/ActionItem/che_서적_05_여씨춘추.php b/hwe/sammo/ActionItem/che_서적_05_여씨춘추.php
index f93d76a5..71410579 100644
--- a/hwe/sammo/ActionItem/che_서적_05_여씨춘추.php
+++ b/hwe/sammo/ActionItem/che_서적_05_여씨춘추.php
@@ -6,4 +6,5 @@ use \sammo\General;
 class che_서적_05_여씨춘추 extends \sammo\BaseStatItem{
     protected static $cost = 15000;
     protected static $buyable = true;
+    protected static $reqSecu = 5000;
 }
\ No newline at end of file
diff --git a/hwe/sammo/ActionItem/che_서적_06_사민월령.php b/hwe/sammo/ActionItem/che_서적_06_사민월령.php
index cee8b3ce..bd411a34 100644
--- a/hwe/sammo/ActionItem/che_서적_06_사민월령.php
+++ b/hwe/sammo/ActionItem/che_서적_06_사민월령.php
@@ -6,4 +6,5 @@ use \sammo\General;
 class che_서적_06_사민월령 extends \sammo\BaseStatItem{
     protected static $cost = 21000;
     protected static $buyable = true;
+    protected static $reqSecu = 6000;
 }
\ No newline at end of file
diff --git a/hwe/sammo/ActionItem/che_저격_수극.php b/hwe/sammo/ActionItem/che_저격_수극.php
index 768d8205..44469f32 100644
--- a/hwe/sammo/ActionItem/che_저격_수극.php
+++ b/hwe/sammo/ActionItem/che_저격_수극.php
@@ -16,6 +16,7 @@ class che_저격_수극 extends \sammo\BaseItem{
     protected static $cost = 1000;
     protected static $consumable = true;
     protected static $buyable = true;
+    protected static $reqSecu = 1000;
 
     public function getBattleInitSkillTriggerList(WarUnit $unit):?WarUnitTriggerCaller{
         return new WarUnitTriggerCaller(
diff --git a/hwe/sammo/ActionItem/che_치료_환약.php b/hwe/sammo/ActionItem/che_치료_환약.php
index 03466ff0..18792f5b 100644
--- a/hwe/sammo/ActionItem/che_치료_환약.php
+++ b/hwe/sammo/ActionItem/che_치료_환약.php
@@ -13,6 +13,7 @@ class che_치료_환약 extends \sammo\BaseItem{
     protected static $cost = 100;
     protected static $consumable = true;
     protected static $buyable = true;
+    protected static $reqSecu = 0;
 
     public function getPreTurnExecuteTriggerList(General $general):?GeneralTriggerCaller{
         return new GeneralTriggerCaller(
diff --git a/hwe/sammo/ActionItem/che_훈련_청주.php b/hwe/sammo/ActionItem/che_훈련_청주.php
index 2f669a4c..bb9e68e9 100644
--- a/hwe/sammo/ActionItem/che_훈련_청주.php
+++ b/hwe/sammo/ActionItem/che_훈련_청주.php
@@ -12,6 +12,7 @@ class che_훈련_청주 extends \sammo\BaseItem{
     protected static $cost = 1000;
     protected static $consumable = true;
     protected static $buyable = true;
+    protected static $reqSecu = 1000;
 
     public function getBattleInitSkillTriggerList(WarUnit $unit):?WarUnitTriggerCaller{
         return new WarUnitTriggerCaller(
diff --git a/hwe/sammo/BaseItem.php b/hwe/sammo/BaseItem.php
index a7e89c00..89b71d45 100644
--- a/hwe/sammo/BaseItem.php
+++ b/hwe/sammo/BaseItem.php
@@ -13,6 +13,7 @@ class BaseItem implements iAction{
     protected static $cost = null;
     protected static $consumable = false;
     protected static $buyable = false;
+    protected static $reqSecu = 0;
 
     function getID(){
         return $this->id;
@@ -34,6 +35,10 @@ class BaseItem implements iAction{
         return $this->buyable;
     }
 
+    function getReqSecu(){
+        return static::$reqSecu;
+    }
+
     function isValidTurnItem(string $actionType, string $command):bool{
         return false;
     }
diff --git a/hwe/sammo/General.php b/hwe/sammo/General.php
index 8de5c4d5..e306d0ac 100644
--- a/hwe/sammo/General.php
+++ b/hwe/sammo/General.php
@@ -100,6 +100,10 @@ class General implements iAction{
         return $this->itemObjs['item'];
     }
 
+    function getItems():array{
+        return $this->itemObjs;
+    }
+
     function getLastTurn():LastTurn{
         return $this->lastTurn;
     }