Having lost everything to horse racing, Yûji accidentally gets 10 million yen. But this sum belongs to a Yakuza.

Yûji and Kosaku are hired to track down an old man. But when he suddenly dies, his granddaughter surfaces with a map to his buried fortune, which the yakuza and…

Hapless gangsters are hired by the yakuza to tail his daughter. Once the identity of the boy she’s dating has been unveiled, the boss offers a reward for his capture.

A duo get mixed up with a girl who finds a trunk load full of heroin.

Yuji and Kosaku become involved with a brother and sister who want to drive a local yakuza gang member out of their neighborhood.