Originally based on the famous otome game, this series presents Ninomiya Sachi's take on Yukimura Chizuru's story. She travels from Edo to Kyoto to look for her missing father and unexpectedly encounters members of the Shinsengumi, who are keeping a terrible secret. Unlike other adaptations, the narrative unfolds somewhat non-linearly, beginning with the Ikedaya Incident and then moving forward through flashbacks.