It’s the Edo period, when samurai still existed. There is an immortal man who is said to have slayed 100 people. His name is Manji. Manji meets a girl called Rin, who swore to get revenge on the people who killed her family. She asks Manji if he is willing to become her bodyguard on her revengeful journey. At first he refuses, but then he sees his sisters face in Rin and agrees. Rin would be in danger if she went alone, so he decides that there is no other way but to lend her a helping hand. However her enemy turns out to be a group of swordsmen called Itto-ryu. That meant that a fight against death had started – even for an immortal man like Manji.