Ten years ago, an unspeakable disaster shook the world and endless devastation rained from the heavens. From the ashes of that tragedy rose the city of learning, Academia. A young girl named Kuu attends one of the city’s many schools, unaware that the fearful disaster only marked the beginning of the struggles to come. When a series of people go missing and a mysterious transfer student named Kyoshiro joins her class, Kuu's life is turned upside down. She soon finds herself locked in a conflict with the Absolute Angels, a group of beautiful girls who must feed off of human life force to survive. Wielding god-like strength, they have the power to destroy the world itself. But are these angels truly demons of destruction, or simply innocent girls trapped in a fate they can't escape? Who is Kyoshiro, and why does he look like the prince that Kuu sees in her dreams? In a world of love and betrayal, Kuu must not only find the answers to these questions, but the meaning of her own existence.