Initially a prestigious girls' high school, the Private Aichi Symbiosis Academy transitions to a co-ed institution, prompting the female students to request permission to carry weapons due to their unease. As a result, the 'Supreme Five Swords,' a vigilante group, emerges. Over time, this group evolves into a task force dedicated to reforming troubled students, leading the academy to actively admit such individuals for rehabilitation. Nomura Fudou, thrust into this environment following a violent altercation, faces a dilemma: conform to the school's standards or risk expulsion. His only choices: comply with the unconventional method of correction, involving dressing and behaving as a girl, or face removal from the institution.