My Little Sister Can't Be This Cute. Volume 4

Ayase, Kirino's school friend, accidentally sees her returning from Comiket with her brother and otaku friends. Ayase can't believe her eyes: her friend - the school star and teacher's favorite - simply can't be interested in something like that, because everyone says that otaku are perverts and potential criminals! She tells Kirino that she won't tolerate such a hobby, but Kirino isn't going to give up on her passions. Is this the end of their friendship?