You’re a young man who was recently expelled from your old school as a result of a great and violent struggle. You pursues a normal life, but the new school to which you have been transferred is the Aichi Symbiosis Private School, where female students have violently oppressed their fellow men and forced them to dress in order to live in school.

A vigilante group called "The Five Supreme Swords" led by Rin Onigawara presses you by force to enforce the rules imposed on men or leave the new school.