All boys of the class, admiring is held in Yumizawa Miyu of the sunny disposition and who is kind to anyone. However, the smile tended to become cloudy a few days ago. Miyus hobby is actually cosplay in secretly, The face and the name were hid and the photograph had been improved to SNS. However by class girl the hobby was almost found out and was troubled. Protagonist that knows the fact cooperates with the best friend, accusing that girl with violation of SNS regulations and voyeurism, there was an incident that succeeded in solving Miyu's trouble.