After mustering up the courage to propose to a girl in an online game, naive otaku Hideki Rusian Nishimura is devastated when she flat-out rejects him. To make matters worse, the girl reveals that she is actually an older man in real life. With his dreams crushed and his heart broken, Rusian comes to an abrupt decision in the midst of his raging fit: he will never trust another girl in an online game again. Years later, Rusian is now in a guild with three other players, one of whom possesses a female avatar by the name of Ako. Ako is deeply in love with Rusian and wants to marry him. Although he entertains the possibility that she might be a guy, Rusian accepts her proposal, claiming that her gender does not matter as long as she is cute in-game. However, after a discussion between the guild members that led to all of them having an offline meeting, Rusian finds out that Ako, along with the other members, is not just a girl but also his schoolmate.

Haruka Nogizaka is the most popular student in the prestigious Hakujo Academy, possessing unparalleled beauty, talent, and influence. Unbeknownst to her fellow students, however, she keeps an embarrassing secret of being an otaku—something that can potentially destroy her elegant reputation. Unfortunately for Haruka, an encounter with the timid Yuuto Ayase in the school library spells the end of her well-kept secret. However, the two reach a mutual agreement with Yuuto promising to keep Haruka's secret, sparking an unexpected friendship between them. Nonetheless, with Haruka's status as the school celebrity and her friendly relationship with Yuuto, both of them are bound to be the subject of gossip everywhere they go!

Haruka's manga and anime hobby is still concealed by her dear friend Yuuto, but Yuuto's other female friend starts to feel affection and attraction towards him, so a feelings war begins among their circle of friends. Meanwhile Yuuto tries to make Haruka happy doing what she likes the most: drawing manga, watching anime, and attending special anime events. (Source: ANN)

Kirino Kousaka embodies the ideal student with equally entrancing looks. Her grades are near perfect, and to cover her personal expenses, she works as a professional model alongside her best friend Ayase Aragaki, who abhors liars and all things otaku. But what Ayase doesn't know is that Kirino harbors a deep, entrenched secret that will soon be brought to light. At home one day, Kyousuke, Kirino's perfectly average brother, stumbles upon an erotic game that belongs to none other than his seemingly flawless little sister. With her reputation at stake, Kirino places a gag order on her sibling while simultaneously introducing him to the world of eroge and anime. Through Kirino, Kyousuke encounters the gothic lolita Ruri Gokou and the bespectacled otaku Saori Makishima, thus jump-starting an entirely new lifestyle. But as he becomes more and more involved in his little sister's secret life, it becomes that much harder to keep under wraps.