Set in June 1863 (Bunkyu 3), a young man with amnesia is brought to the Mibu Roshi-gumi headquarters in Kyoto. Rescued by Okita Soji, he begins his new life as a member of the unit under the name Jinnosuke Tachikawa. As the group's presence grows amidst the turbulent Bakumatsu era, Jinnosuke finds himself caught in the waves of historical change and the brewing tensions within the ranks.
