Youichirou Shimatani

Sequel to Star of David (1989).

Anime adaptation of the same name sports manga by Kurashina Ryou. The small town of Hakodate is suffering from poverty due to the closure of the coal mines. 17-year-old Ken Ryu, a giant man, gambles in boxing fights to feed his mother and sister. Eventually, Ken pursues his unfulfilled dream of becoming a world boxing champion.

Tetsuya was the product of his mother being raped by a burglar, and after years of abuse form his mother's husband he becomes a serial killer/rapist.