ZMEN-049 Hallucination! Delusion? I had never considered my sister to have a vagina, but suddenly cat ears grew on her… As an otaku, I was struck so hard that I achingly got a boner!

One day, my little sister suddenly grew cat ears. Are you hallucinating because you studied too much for the exam? Or did delusion and reality get mixed up due to lack of masturbation? Anyway, my little sister, who is usually never a sexual object, looks irresistibly cute…