While being grilled by Kirino over why he hasn't made any progress in the game she ordered him to complete, it occurs to Kyousuke that she needs some friends that she can talk to without concealing her otaku interests.

Kirino has made her debut as an author. Reader response has been overwhelming, and her editor has even better news to report.

One day, Ayase calls Kyousuke out of the blue and asks him to see her. She wants to get Kirino a present, and wants him to think of what she would be happiest to get.

Ever since the events of the previous episode, Kyousuke has been nervous about his improved relationship with his sister.

One morning, Kyosuke is surprised to find Kirino behaving politely to him. That evening, while Kyosuke worries about whether she is forcing an act in front of everyone, Kirino uses her final life counseling session to ask Kyosuke to buy her an eroge that is launching at midnight in Akihabara. As Kyosuke gets in line, he runs into his classmate, Kōhei Akagi, who is buying a yaoi eroge for his own sister. Kyousuke, after realizing that the trains are no longer running, manages to convince one of the other customers to lend him his bike so he can ride back home. After Kyosuke gets back home with the game, Kirino asks him to play with her. She then shows him all of the medals and report cards with bad grades she had received throughout the years. The next morning, Kyosuke learns that Kirino has left home for America for track and field training. In the beginning of the new school term, Kyosuke meets up with Kuroneko, who would be attending his school as his underclassman.