In 1600, Japan was split between the Eastern and Western Armies, and was in the midst of a great war to determine the nation’s future.

In the north, Masamune Date has just reclaimed his former lands after siding with the Eastern Army. Genzo, an aging ninja who serves him, returns home. Then Kaede, a ninja on the same side, arrives with urgent news.

Masamune’s mother, now sheltered in a neighboring domain, is in a castle surrounded by the Western Army and in need of rescue. However, she once attempted to poison her own son and failed, leaving the Date clan. Genzo believes that leaving her to her fate is the only option.

To survive an age of deceit, a mother and son choose their path—
In the shadow of a history-changing war, East and West ninjas clash!