diff --git a/src/main/java/space/yurisi/universecorev2/subplugins/gacha/core/event/EventGacha.java b/src/main/java/space/yurisi/universecorev2/subplugins/gacha/core/event/EventGacha.java
index 4419002d..df8d6286 100644
--- a/src/main/java/space/yurisi/universecorev2/subplugins/gacha/core/event/EventGacha.java
+++ b/src/main/java/space/yurisi/universecorev2/subplugins/gacha/core/event/EventGacha.java
@@ -46,6 +46,11 @@ public EventGacha(Player player) {
     public void turn() {
         Boolean ticket = UniverseItem.removeItem(player, "gacha_ticket");
 
+        if (player.getInventory().firstEmpty() == -1) {
+            Message.sendErrorMessage(player, "[ガチャAI]", "インベントリがいっぱいです。(スタックが余ってる場合も一度しまって下さい。)");
+            return;
+        }
+
         if(!ticket){
             Message.sendErrorMessage(player, "[ガチャAI]", "チケットが足りません。");
             return;