Korekiyo is an aloof and somewhat creepy person, but he is also very cool-headed and intelligent. He usually speaks in a calm and polite manner, but he nevertheless comes across rather off and makes others uncomfortable due to his strange and sometimes morbid thinking. Korekiyo is a tall, slim student with rather pale skin and long ocean green hair. He has narrowed yellow eyes, and his mouth is covered by a black mask, covering his mouth and neck. Korekiyo is 6'2.