Shirakawa, is a high school girl whose mature appearance and behavior make her the object of admiration. However, the real Shirakawa is not the person she is rumored to be, but a hardcore "fighting shape-shifting girl" otaku. The only one who understands her is Tateishi, a cool and handsome guy who is also a member of the Kyudo club. Like Shirakawa, Tateishi attracts the eyes of many people from afar, but in fact, he is also a "Sentai" otaku.

A love comedy unfolds between the two who share a secret hobby: Sunday morning children's hero shows.