Aichi Coexistence Private Academy was once only open to female students of high status. However, a decision was made to accept male students as well. To allay concerns from hesitant female students, the academy permitted them to carry weapons for self-defense. Moreover, a vigilante group known as the "Supreme Five Swords" was established. Nomura Fudou had to make a choice upon enrollment—either dress and behave like a female, or be expelled for his rebellious behavior.