With Tousai dead and lord Teyasu's ninja scroll lost to the Iga, the plan to rip the Kouga apart unnoticed is slowly falling apart. With her dying words, Okoi tells Saemon the registry's true location. Determined to make it out alive, Saemon will hold up his ruse long enough to walk out with the scroll in his hands and take vengeance for his sister's death along the way.