Having lost everything at a local yakuza gambling den, Genta comes to Osaka hoping to make a comeback. He falls in love with Chigusa, the woman who gives him the opportunity to hit the jackpot at the bicycle race track, but his hopes are dashed. Then, at a hormone restaurant in Kamagasaki, he has a wild time with a glamorous lustful wife while her husband is away. He quickly becomes one with the locals. He tries his hand at various sleazy and shady businesses with them, but his business doesn't go well, as he attracts the attention of the local yakuza. At this point, he coincidentally reunites with Chigusa in town. However, Chigusa is the mistress of the yakuza boss, and things take a turn for the worse...