The Mimic is an Undead monster mimicking a treasure chest found in the Treasure Cave. She resembles a man-eating chest, lined with teeth when opened and revealing what seems to be a pale, undead girl with black hair and clothes. When closed she looks exactly like a normal chest.
Luka has the option whether to ignore fighting the Mimic. There is no reward, unlike other monsters, for skipping the fight with Mimic. However, Luka will gain experience if she is defeated, making the upcoming battle with Nanabi a little easier. Alice does chastise Luka for opening the chest in the first place, though.
