Handsome, good at sports and academics, the archery club leader, Inui has a secret. He is lovers with a kouhai named Koumo Chiharu (M). Not only that, but Chiharu is a splitting image of the "Magical Girl Mamirin" from Inui's favourite anime. And underneath the seriousness and reputation, Inui is actually an otaku. One day Inui wisened up. Chiharu's existence has had more and more of an impact on his life. Who does he love more, Mamirin or Chiharu? It's the competition between love and moe. Which direction will Inui's great struggle be headed?