THINGS ARE ABOUT TO GET GIRLY! One day, Marino Hanamura receives an urgent request for assistance from Amaterasu Girls' Academy, where countless students and staff members are being mysteriously drained of mana in a suspected act of magic terrorism. Fortunately, Marino knows the perfect person to resolve the incident: Kousuke Takioto. Utilizing a secret angelic technique, Kousuke fuses with Nanami to become a female student and transfers to Amaterasu. But when the events of the game's scenario start to veer off script in a dungeon, will Kousuke be able to course correct and keep everyone alive?