Is a demon have long black-red spiky hair in a ponytail wears a dark purple kimono has a sword at all times he have six eyes in eye the middle pair of his eyes his right eye has the word “uppermoon” engraved in it in kanji while his left eye has the word “one” engraved in kanji in the yellow eyes with red sclera and is usually cold stoic and serious and loyal to muzan the demon king