An ad exec named Goda (Shinya Tsukamoto) is mired in depression after his girlfriend's suicide and becomes obsessed with obtaining the same model of gun she shot herself with. In his search he crosses paths with a street gang who beat him senseless, but he's slowly becoming preoccupied with one of their members, Chisato (Kirina Mano). Once he finally finds the gun he was looking for, he inexplicably decides to protect the gang that beat him up.