Yoshiyoshi Arakawa

Former yakuza underling Kazuma Kiryū has recently been released from prison after a lengthy incarceration and is trying to piece his life together and distance himself from his yakuza past. Unfortunately, Kiryū's problems slowly escalate as he is pursued by a former associate, the baseball-bat-wielding psycho Gorō Majima, who has a grudge to settle with Kiryū.

As children, the introverted Smile was being bullied by a gang of kids until the brash Peco comes by and chases all of them them away. Peco then takes Smile under his wings and teaches him how to play the game of ping pong. From there a life long best friend relationship comes into existence between these two polar opposite ...