The Armchair Detective Makes His Debut

A film crew visits a mountain-top pension for an idol's photo book. Sudden heavy rain that night. The film crew is left alone in the isolated villa. Then tragedy strikes...

Only the Saito family's little daughter apparently has no problem with their extremely unusual flatmate Kentaro-san. Because he eats a lot and breaks a lot. And he has good reasons for that.

Following a stint in reform school, Ryu (Shinsuke Shimada) returns to his home, the Minami area of Osaka, accompanied by his new friend Ko (Takeshi Masu). He's greeted by his friends, Chabo (Ryusuke Matsumoto) and Ken (Bang-ho Cho). They seek to forge their own path through a multitude of rival gangs in Kita and Minami, including the Hokushin Alliance, backed by the yakuza, the Hope Association, and various other minor factions, including Zainichi Korean groups. What follows is a wild, fast-paced story of violence, revenge, betrayal, and discrimination, that never loses its sense of humor.

The warlords overrun the country while the farmers are starving, and forced to become soldiers to keep the wolf from the door. The farmers are recruited in groups of fifteen. In Yaju's village, there are only twelve men, so they press Oto, who looks more like a boy than a girl, to join, disguised as a man.