What happens when a predator and its prey team up? A schoolgirl, descended from demons, fights for her life in this paranormal adventure! Her average life seemingly forever abandoned, Nanami is thrust into the thick of the intensifying hostilities between the Ministry of Sacred Treasures and the demon organization Arcana, who desire Nanami's inherited demonic powers for themselves! As the situation escalates into all-out war, who will remain standing once the dust has settled? And will Nanami be able to master the immense power that dwells within her in time to join the fight?