Shiromari

Overview
Shiromari is a chameleon summon that took the form of a castle. Shiromari was summoned over fifty years ago. As a last resort in a war, the dying lord of a castle summoned Shiromari and had it devour anyone who approached. The lord died before he could release the summoning, and thus it remained bound to the contract scroll used to summon it. Shiromari is a giant chameleon with huge beat red eyes. When it was released, its entire body looked like a tornado with large red eyes. It has since had a new contract created for those who wish to summon it.

Abilities
Shiromari had the ability to shape shift and change its form completely. It was even able to take on the form of an extremely large castle. Its shape-shifting ability was so detailed and intricate, it could manipulate even the smallest details. Within the castle, it was able to mimic anything that would normally be found within one (lamps, pictures, stairs, carpet, etc.). In addition, its shape changing abilities are apparently long lasting, keeping its form for an indefinite amount of time. The chameleon, itself, was apparently large enough to devour many people that approached it.