Shihai is a tall young man with fluffy white hair and black eyes, which are long and thin in shape. His most prominent feature is his pitch black skin, its unusual color most likely due to the Quirk he possesses, and his face usually holds an unsure, irritated or sly expression. Shihai is a sly, deceitful schemer, who prefers to catch people off guard. He appears to enjoy dark concepts and has a penchant for dramatic speech. He enjoys spending time in darker rooms and loves scaring people.