On a night in Kyoto, another story begins. A brother and sister who operates a dojo encounters a figure with an asagi-coloured haori; a suspicious shadow with white hair — a shinsegumi rasetsu! In order to avenge her elder brother who sacrificed himself to protect her, the sister takes up the sword. A determination that will see her through turbulent times. A time where she meets a group of men. This is the story of a girl gets embroiled in a turbulent era and the men who are building a new one.

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?