最後の忍びの一族、俵家。過去のある事件をきっかけにそのルーツを捨てたが、今、国を根底から揺るがす日本史上最大の危機に立ち向かう。
The Tawara family, the last shinobi clan. It had abandoned its roots after an incident in the past, but now the family must take on the greatest crisis in Japanese history, one that threatens to shake the nation to its core.
