items are stored in savedata in a specific order. If you randomly take an empty slot to create an item, that item will have "unlimited quantity" regardless of how much it's showing in the game. For example:



0x10~0x17 in your savedata stores the first item in the game (薬草). If you change the value to D1 00 03 00 00 00 (ステーキの仙丹x3, this item gives your monster 50,000 EXP once used), you will see in your bag 3 ステーキの仙丹 but you can use it unlimited times even though it shows only 3 quantities. Until when you normally obtain the 薬草 (via gathering on map, or purchase from shop), 0x10~0x17 will be overwritten by the system to 薬草, and you no longer get access to this hacked ステーキの仙丹~

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