About three hundred years ago, in the 15th year of Genroku (1702), the fifth generation general Amikichi implemented the policy of reassuring the people, and the people's lives were stable. The young samurai Sozaemon Aoki (played by Junichi Okada) stayed away from his hometown and came to Edo from Shinshu in order to find his father-killing enemy Kanazawa Jubei (played by Tadanobu Asano). But his swordsmanship is poor...