Rebellious Fudo Nomura has no idea what he’s getting into when he’s transferred to a school where the girls carry weapons to appropriately discipline the boys into submission. In the Private Aichi Symbiosis Academy, Nomura’s life is actively in danger when he becomes the target of Rin Onigawara, leader of the Five Ruling Swords, the five-girl group that commands the school. His only option: get expelled from the only school that would take him, or survive the wrath of these Machiavellian girls!