The film begins when the legendary swordsman Miyamoto Musashi is still named Shinmen Takezo. After being on the losing side of the Battle of Sekigahara, Takezo and his friend manage to escape and come across a young woman and her mother.
During Muraishi's time in prison for fraud, he recalls his past and learns a power to penetrate and cure others. Upon release, he goes to Hakodate, where he can find his ex-wife, Kiriko. ...