Manji's younger sister is killed in front of him. With his wrecked body, he still takes revenge. A mysterious woman appears in front of Manji and 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, she asks Manji to be her guard. Rin and Manji begin their fight against "Itto ryu”.