on script load:
    wipe server crafting recipes
    register new shapeless recipe for Tripwire Hook of Unbreaking 1 named "<green>大樹の鍵" using oak log, Iron Ingot, air, air, air, air, air, air, air

on rightclick:
    player's tool is tripwire hook of Unbreaking 1 named "<purple>EnderKey"
    open the player's ender chest to the player
    remove 1 tripwire hook of Unbreaking 1 named "<purple>EnderKey" from player