- A Chain (a young girl in human form) that makes a contract with Oz. She is violent and has an unyielding personality. She acts as if she owns Oz. When she fights, she turns into a black rabbit and her weapons are a chain and a scythe. Though she is a Chain, she has a human form as well as personality. She is an enigmatic character.
Chain The general term for the beings that came into existence in the Abyss. Each Chain possesses unique power and exhibits its power upon getting a contractor.
