The heavenly light (Amanohikari) school has been confined to the barrier by rebel succubus who plans to rule the human world.
Princess Amelia, the princess of Makai who escaped the war and came to the human world, tries to escape, but the transfer magic is obstructed.
A princess who is thrown out into the school with her nakedness due to the shock of transfer failure.
Meanwhile, she finds evidence of the betrayal of her close acquaintance, Lilith, as well as her family, and she alone goes through the school that has become a different world...