Overview

In the third year of the Keihō era, in Edo, the land of Hinomoto, a turbulent time later known as the Bakumatsu period: Battles known as Eternal, in which only samurai are permitted to risk their lives, are taking place. Meanwhile, Standard Battles, in which no lives are risked, are beginning to spread among the common folk. As two souls intertwine, history begins to shift...