He is a third-year student at Fuun High School. Born on May 5th, he is 183cm tall and has type B blood. He is the leader of the Fuun High School gang with 100 subordinates. He is called "Boss" by his subordinates. He wears a ripped school cap, school uniform, and geta sandals. He is the man whose arm was broken in the incident that led to Honoo's suspension. He is the quintessential "gang leader"—a hot-blooded, compassionate man of the past. However, his overly passionate personality often leads him to act as the comic relief, contrary to his appearance. He has one older sister who is a university student. However, due to her strong-willed nature, he has a slight fear of women, which often makes it difficult for him to speak his mind in front of them. This is why he lives away from home and usually lives in the Fuun High School dormitory. Geki's older sister and Yoku's older sister are also friends who share the same interests (according to the drama CD). His favorite foods are tomatoes and sushi (except octopus). He dislikes octopus. His hobby is collecting model trains. His motto is "Only follow the truth."

He has a crush on Maria, and calls her "Maria-san."