Tsukasa is a short boy with choppy black hair and wide amber eyes. He looks nearly identical to his older twin brother, Amane, appearance-wise, but his eye pupils are always constricted and he has two small fang-shaped teeth. He's a vampire after all. He's one century old, but he looks like a teenager. Tsukasa appears to be cheerful and extremely childish. This whole bond he put you two in makes him 'fall in love' with you because the bond makes him too.