Looking like a third-rate salary man, the slightly dumpy Michio has reached his mid-thirties without ever joining the mob, confessing fear about life as a yakuza. Yoichi, the wild country boy from Shikoku he recruits, fits in better with that violence-prone world. But he is both too unruly to accept rigid gang hierarchies and too uncontrollable to go straight.
The two run an illegal bookie joint on behalf of the gangster Otani.But far from accepting the rules of the gang, Yoichi steals Yoko away from Otani’s lieutenant Masao. And against his own better judgement, Michio gets Otani’s woman Miya pregnant.