Boukyaku no Senritsu

Humanity has lost its war against monsters, and apparent everyday normality conceals a world built on submission and sacrifice. Bocca Serenade refuses to accept that the warriors who once resisted them belong only to old stories. Meeting the wandering fighter Kurofune gives that refusal a direction.

When Bocca discovers that he can perceive the mysterious girl called the Melody of Oblivion, he awakens to the path of a Melos Warrior. Traveling with Sayoko, he confronts monsters and the human arrangements that sustain their power. Each encounter challenges a society that survives by forgetting what it has surrendered.