As Kyosuke, Kirino and Ruri decide to visit Saori's apartment as a surprise for her birthday, they finally see what she looks like without glasses. Four years ago, Saori was a weak bodied girl who was shy about showing her face to others. One evening, she was brought by her older sister, Kaori, to a special apartment where she indulges in otaku activites alongside her flatmates, Shinya Sanada and a budding manga artist named Kanata Yamanashi. Kanata took an instant liking towards Saori and soon taught her about the otaku lifestyle. However, the circle soon starts to dwindle after Kaori left to get married, leaving Saori alone once more. Feeling betrayed by Kaori, Saori became determined to start her own circle and help others like she helped her, receiving her trademark swirly glasses from Kanata to help her on her way. This would eventually lead to the start of her otaku life and her meeting with Kirino and Ruri.

京介与桐乃、黑猫为了给沙织一个惊喜，决定去她家突袭。没想到到了楼下才发现，没人知道沙织住哪一间房。此时一位气质出众的千金大小姐出现在三人面前，她一见到京介等人就掩面腿软，而她的声音听起来好熟悉...

京介與桐乃、黑貓為了給沙織一個驚喜，決定去她家突襲。沒想到到了樓下才發現，沒人知道沙織住哪一間房。此時一位氣質出眾的千金大小姐出現在三人面前，她一見到京介等人就掩面腿軟，而她的聲音聽起來好熟悉...

Alors que Kyosuke, Kirino et Ruri décident de visiter l'appartement de Saori pour lui faire une surprise pour son anniversaire, ils voient enfin à quoi elle ressemble sans lunettes. Il y a quatre ans, Saori était une fille au corps faible qui n'osait pas se montrer aux autres. Un soir, sa sœur aînée, Kaori, l'a emmenée dans un appartement spécial où elle s'adonne à des activités otaku avec ses colocataires, Shinya Sanada et un mangaka en herbe nommé Kanata Yamanashi. Kanata se prend immédiatement d'affection pour Saori et lui apprend rapidement le mode de vie des otakus.

サプライズのために訪れた沙織のマンションの入り口で、沙織の部屋番号がわからないことに気づいた京介と、それを責める桐乃と黒猫。そんな3人の前に、お嬢様の気品漂う美少女が登場する。京介たちに気づいた途端、顔を覆い、しゃがみ込んでしまったその少女の声は、彼らのよく聞き覚えのあるものだった。

서프라이즈 생일축하를 위해 쿄스케와 키리노, 쿠로네코는 사오리 씨의 주소를 찾는다. 하지만 막상 호수를 몰라 맨션 로비 앞에서 서성이고 있었는데...처음 보는 한 미녀가 그렇게 입씨름하는 세 명을 보고 소스라치게 놀란다.