On the night of a blood-red full moon, Kohinata Mangetsu, a completely ordinary high school student, returns to her classroom to retrieve something she forgot... and finds herself caught up in GRANBELM, a battle to determine who is the one true mage. Shingetsu, a girl participating in the battle, tells her that the world once overflowed with magic. Confused, Mangetsu tries to run away, but then...
until only one is left standing,
،إلى أن تظلّ واحدة واقفة
hasta que solo queda una en pie,
hasta que solo queda una en pie,
finché non rimane in piedi una sola partecipante,
até restar apenas uma de nós,
вплоть до определения одного победителя,