Manji's (Takuya Kimura) younger sister is killed in front of him. With his wrecked body, he takes revenge for his younger sister. A mysterious woman appears in front of Manji. She gives him eternal youth and immortality.
Rin Asano’s parents are killed by the swordsmen group "Itto ryu” and her parents’ fencing studio is destroyed. To take revenge for her parents' death, she asks Manji to be her guard.