Kokushibo is a tall and muscular man with pale skin and long, spiky black hair with red tips that he kept in a ponytail. His most notable feature is the three sets of eyes on his face with yellow irises and red sclera that have black straight lines diverging from each iris. His middle set of eyes features the kanji of "Upper Rank (上じょう弦げん, Jōgen?)" and "One (壱いち, Ichi?)". Kokushibo also has red markings resembling flames on the top left side of his forehead and the bottom right of his chin.