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.

As the rest of the Igas cross the sea, Tenzen makes an advance towards Oboro, leaving Koshiro torn between his master and the clan leader. With all the confusion this makes for the perfect opportunity for an enemy to make his move.

Kagero sets out to kill Oboro, after telling Gennosuke that she killed her wanting gratitude. She however gets caught in a trap caused by Tenzen.