To become the best swordsman in Japan, Kazanoshin sets his sights on Edo! On his way there, he meets a pickpocket, Kichiji the Dolphin. Kazanoshin is entrusted with a scroll by him. It is a letter of serial seal with the name of a gang that is trying to steal the treasures of Edo Castle. Kazanoshin joins the Chiba Dojo, where he aims to become a member, and becomes friends with the Shitennou. However, a shadow is approaching that is after Kazanoshin in order to recover the letter of alliance. ......! A Bakumatsu jidaigeki depicting a time of upheaval when a new sun is about to rise over Japan!