The Shinsengumi's war against the Rasetsu stops being background detail and becomes the actual story. Condensing two seasons into one film means every scene earns its place, every sword swing matters, and Chizuru's survival becomes urgent instead of melodramatic. The action animation is sharp enough that you forget this started as a romance game, and by the final confrontation, you're watching a historical tragedy, not a dating sim cutscene. It requires you've already loved the TV series to land completely, but if you have, this is the version you'll rewatch.
Kyoto burns with hidden conflict. By day, the Shinsengumi police force maintains order through steel and tradition. By night, the Rasetsu, superhuman warriors fueled by dark hunger, wage a silent war for supremacy. Caught between these colliding worlds is Chizuru, a young woman masquerading as a man while searching for her vanished father through the city's dangerous streets. Her investigation leads her to Toshizo Hijikata and his band of lethal swordsmen, but the encounter that changes everything comes when Chizuru discovers what her father truly created: an elixir that transforms ordinary fighters into nearly unstoppable forces. Now both the Shinsengumi and the Rasetsu hunt her relentlessly, each side desperate to weaponize her father's research for their own survival. Caught in a web of supernatural violence and political intrigue, Chizuru must navigate treacherous allegiances while uncovering the truth behind her father's disappearance. Her choices will determine whether she becomes a pawn in others' wars or finds her own path through the bloodshed.