1863, Kyoto. At a small teahouse run by his father, Fukakusa Kyujuurou lived modestly yet earnestly day by day. However, one night, that peaceful everyday life changed dramatically. His father, who had been sheltering a pro-Shogunate samurai, ends up being killed by Shonai, a Choshu samurai. Shaken with rage, Kyoujurou dashed out of the shop to pursue Shonai and his comrades, but then a man appeared, seemingly understanding Kyoujurou’s intentions, and swiftly cut down one of the samurai. Identifying himself as the chief of the Shinsengumi, Isami Kondo offered words of condolence to Kyoujurou, expressing gratitude for his father’s bravery, before departing. Determined to seek revenge, Kyoujurou resolved to enlist in the Shinsengumi. After seeing a poster recruiting soldiers, he goes to the venue for the entrance exam, but all of the applicants are skilled fighters, making him feel inadequate with his unsteady sword skills. Despite participating in the matches, Kyoujurou couldn’t hold his ground at all. Still unable to give up on enlisting, Kyoujurou, under the instructions of Okita Souji, finds himself pitted against Kamagiri Daisaku, by far the most skilled swordsman among the applicants…?