With confidential Nue files having been leaked to their enemies at Kuchinawa, a search is underway for the traitor who provided the information.

Now that her revenge is complete, Sawa doesn't know what to do with herself. With Tsukishima on the run and Elena facing a major change, what will become of the agents of Nue now that their primary target has been dealt with?

With her life in tatters, Sawa struggles to find a reason to keep going. Accompanied by another Nue executioner, she decides to look to her past while considering her future.

Jin Kuzuhara is the ruthless, enigmatic head of the shogun's personal group of assassins, Nue. But how did he come to serve the Tokugawa regime? And what is his secret connection to Sawa?

Sawa confronts Jin Kuzuhara about the truth behind what happened to her family and her village, but before she can get real answers a squadron of the shogun's troops arrives to try and capture her.

Asahi is alive, but Sawa has seen too much to ignore the crimes perpetrated by Jin Kuzuhara in the name of the Tokugawa regime. Hoping to secure a brighter future for the girl she has adopted as a sister, the assassin once known as Yukimura takes up her sword once again...