Since her parents died when she was young the protagonist along with her older brother run a dojo their father left them. However their peaceful life was shattered by an intruder - a white-haired monster wearing A Shinsengumi haori. To avenge her brother, who sacrificed himself protecting her, she resolves to pick up the sword. Where will her determination lead her in this turbulent era?

Since her parents died when she was young the protagonist along with her older brother run a dojo their father left them. However their peaceful life was shattered by an intruder - a white-haired monster wearing A Shinsengumi haori. To avenge her brother, who sacrificed himself protecting her, she resolves to pick up the sword. Where will her determination lead her in this turbulent era?