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!

Film Introduction

One day my little sister suddenly grew cat ears. Is this because I've been studying too hard for exams and seeing things, or is it because of a lack of masturbation causing delusions to mix with reality? Either way, my little sister, who would normally never be an object of desire, now seems incredibly cute…