After Yūto Ayase returns an anime magazine to the school library, he accidentally runs into the most popular girl in school, Haruka Nogizaka, and discovers her secret that she is an anime and manga otaku which greatly distresses her. Haruka starts avoiding Yūto at all costs which causes others around them to blame Yūto for doing something bad to her. Eventually, Yūto finds Haruka on the school roof where he explains that he will not tell anyone about her secret hobbies if she does not want anyone else to know. This makes Haruka very relieved and happy that if anyone had to find it that it was Yūto.
アキバ系の親友である信長に頼まれて、アニメ誌「イノセント・スマイル」6号の返却手続きに図書館へやってきた裕人。そこで学園一のパーフェクトお嬢様にして裕人のクラスメイトである乃木坂春香の姿を見かけた。普段とは別人のように人目を気にする挙動不審ぶりで、彼女が貸し出し手続きをしていた、その本とは…!?
유서 깊은 노기자카 가문의 장녀, 하루카는 재색을 겸비하고 문무를 두루 갖춘 완벽한 여고생이다. 그러던 어느 날 우연한 기회에 유토는 완전무결한 줄 알았던 하루카의 비밀을 알게 된다.
