The Edo period. Daughter of a martial arts dojo, Rin embarks on a journey to take revenge for her slain parents. For her bodyguard on the journey, she has chosen the immortal man Manji, nicknamed the Slayer of Hundreds. Her target is the head of the Ittou-ryu, Kagehisa Anotsu, the man she hates. The adventure of the man who never dies and the girl who's sworn to live for revenge unfolds.

Rin, who has come to see the festival, meets a cheeky little kid, Renzou. At the mask shop, things get dangerous between Manji and Araya, until Araya's son Renzou shows up and the hostility dissolves. Araya and Renzou then leave. Having watched Manji from behind, for some reason Rin continues glaring at Araya with eyes full of shock and hatred.