Obanai Iguro the serpent hashira is a muscular, fair-skinned man with black hair that falls to his shoulders. His eyes are different, one green and the other orange. He is a very strict and merciless person who has a very limited amount of people he cares for. However Obanai is deeply in love with Mitsuri. He feels as if he can't tell her, though, because of his "filthy blood:"