A local yakuza boss of a silk farming town shows kindness to the wandering gambler Oryu by letting her stay at his residence. When a rival yakuza gang, who wants to take over the town’s businesses, murders him, Oryu is obliged to protect his children and business.

Ryuko was raised by her father, a gambler named Senzo Yano in Kumamoto, Kyushu, after her mother died when she was little. When she turned 18 years old, her father was attacked and killed by a stranger in alley. Ryuko then dissolves her yakuza family, and, carrying the wallet left by the killer, she sets out on a journey to avenge her father’s death. Five years later, she wanders the nation, known only as! Red Peony Oryu who has a red peony tattooed on her shoulder and has the defiance and courage of a man. She meets Katagiri - a loner gambler, Kumatora - boss of a family in Shikoku, and Otaka - female boss of the Doman Family in Osaka. With their help, she finally catches up with the man who murdered her father.

Oryu searches for blind child she left behind and get involved in a Yakuza turf war that takes place in the Tokyo Theater.

Shimamura & Mineko return to Kamagasaki in Osaka. In their return Shimamura quickly finds himself defending a lady in distress. During the skirmish he bumps into his old buddies who turns him on to the "new" goings on in town, Shimamura is angered to discover a Chinese triad organization has overthrown their gang, a situation they must reverse. Now he and the old gang finds themselves putting their lives on the line defending the honor of the "Yakuza Way", the locals of Osaka, even Japan!!

The fourth film in the Kanto Street Peddlers series. The protagonist, played by Bunta Sugawara sides with female boss Yumiko Nogawa to fight evil Hiroshi Nawa, who at one point employs rebellious young hood Tsunehiko Watase and Kagawa. Tatsuo Umemiya also shows up as a cool, leather jacket gunman who gains Sugawara’s respect despite playing for the opposing team. What eventually keeps this film from being as good as the first is the loose script that doesn’t really tie all the fun stuff into a coherent package. Much is forgiven however when the last 20 minutes arrives with several visually striking set pieces (including one death scene stylized to the point of ridiculousness) and a terrific final massacre. This was Suzuki’s last contribution to the series; the fifth and final picture would be helmed by Takashi Harada.