The prequel focuses on a young man named Ryunosuke Ibuki, who is saved by the leader of Roshigumi (the old name of Shinsengumi), Kamo Serizawa, and then forced to join Roshigumi as his page to repay his debt. Similar to the original game, it is consisted of six routes of the same characters where Ibuki is required to make the right choice to form friendship with each main characters of their respective routes. In all routes, Ibuki always ends up leaving the Shinsengumi to start a new life of his own. Reaching the good ending of the routes would show the continuation of the ending of respective Shinsengumi members with Chizuru from the original game after war ends.