The government in Edo era is suffering from a financial crisis. It hires "Kage" to provoke the collapse of small hans (prefectures). "Kagekari" are people who were hired by Daimyos (mayors of local governments) to resist kage. The young mayor of Suwa Takashiwa, Tadamaru was assaulted by a kage on his way to Edo. Zyubei and Gennnosuke, the Kagekaris, try to carry injured Tadamaru to Edo.

The two ronin that Sawatari Mondonosuke saved were secret envoys from Ryukyu. They could not stand the tyranny of the Satsuma clan and were trying to appeal to the shogunate. But they were captured by someone afterwards. Mondonosuke’s boredom bug started to stir… Mondonosuke rescued the two who were imprisoned in the mansion of the chief elder, Okubo Iga-no-kami , as well as a senior official, Mamoru, and his niece, Reika , who had also escaped from Ryukyu. The Satsuma clan hired Wakura Juro to assassinate Mondonosuke through his daughter O-Ran, who is a spy …