an agent sent from Japan's Ministry of Defense to supervise Korosensei. In Kunugigaoka Junior High School, he was admitted as an assistant teacher and as the physical education teacher in Class 3-E. Karasuma is a handsome young man with spiky black hair and eyebrows and piercing dark eyes. He has a tall and muscular build. He dresses professionally in a black business suit with a white shirt and a black tie. He is described as being "cool" by his students.