The main character of the story, he's a famous delinquent from Teiken High, in the Kichijoji area of Musashino, Tokyo, known for his passion of Boxing, street fighting, and his moped, Chavez. Albeit being a delinquent, being easily angered and stupid at times (He punched a professor when he heard the girl's uniform changed), he has a sense of honor and respect, and values his friends greatly. Taison is also known as one of the Tokyo's elite 4s, or "Heavenly Kings", and aims to become the world champion in boxing.
Taison has an interest for Chiaki Nanase. His name is based on wrestler Akira Maeda and former world heavyweight champion Mike Tyson. He lives with his brother in the Honky Tonk apartment complex. Him and his older brother both left the south of Japan for Tokyo to avoid inheriting their father's profession, that of a monk. He is a lightweight when it comes to drinking and always breaks down into tears.