Due to the effect of the prolonged great depression, finally even the police have to introduce a part-time job system for its employees. Although his main job is a steeplejack, one man is also employed as a day-laborer detective. He spends his days waiting for an incident to occur so he will be called in to investigate. On the other hand, Yasu is not only a graduate of The University of Tokyo with a successful IT business, he is also member of the Nagasaka yakuza clan. Moreover, he is a favorite of the clan leader.

The story takes place when the Shin-Okubo district of Tokyo was still known as Okubomura, where the yakuza are running a real estate business called Misato Kogyo. Starting with the mule AF, who carries 'cargo' inside his own butt hole, the gang members, each of whom has their own complex personality, greatly admire the gang leader Joaquin. But after he is hospitalized after his car accident scam goes wrong, they plan to rebuild the organization together with the new gang leader, a dope friend.