A Child born when a young boy borrowed a demon's power to protect precious memories of his grandfather. Shaped like a treasure chest, Surprise Mimic uses sharp fangs to protect its contents.
It is generally pretty cheerful, but if anyone tries to steal its treasure, it attacks with wild ferocity. It hated Hot-blooded Boxer because of the bad blood between their pactmakers.
Rumor has it that its bite is even more painful than a crocodile's, but no one has ever checked to make sure. Can you blame them?