Magistrate Toyama no Kin-san is ordered to catch the phantom thief Nezumi Kozo, who is robbing daimyo and wealthy townspeople. Under the name of Nezumi Kozo, there is a small wholesaler Jiro. And once Toyama and Jiro, when they were young, were comrades who spent all their time gambling and having fun with women in the Yushima Tenjin area...
