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 or irritated 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, similar to Fumikage Tokoyami.