[Machine Translation] On a moonlit night at the moat side of Fukagawa, Izumibei and his gang, who ran a gambling house and other businesses, were found slain. Among them was a carpenter named Yosuke, who was thought to have been caught in the street. From the investigation, it was suspected that Kamezo, a hannya (a young man who had been involved in a territorial dispute with Izumibei) and his gang were the underlings, but Kamezo's whereabouts were completely unknown. Just then, Okakkobori, who was investigating the underlings, is slain, and the criminals take action that could be seen as a threat to the town. However, Fusuke, whose father Yosuke was killed, is left alone with his grief as he scrambles to find the lackey. Hayato Nagatsuki, a secret agent, sees this and vows to find a lackey for Fusuke. This is a new historical long story written by a very popular author.