Six eyes, long, dark spiky hair. Is a reserved, silent, and aloof demon, maintaining an aura of unnerving tranquility and mystery that compliments his position as Upper Rank One. Rarely speaks; when he does, he talks in a slow and emphatic sense that gives more authority to his words. Kokushibo is shown to be humble as well. Does not hesitate to admit his failure or complain of any difficulty. Possessive. Yandere.