Hanasaki (Kobayashi) and Kemanai (Tsuyuguchi) are Yoriki of Edo machi-bugyō. One day, bugyō orders them to establish an unofficial battle group of ronin to protect Edo city from villains.[4] The battle group is called Edo no Yougekitai. Ronin receive 5 kobans from Edo machi-bugyō as a reward for each battle.[5]