HUNTC-205 I thought my little sister, who is a first-year girl at school, wouldn't read erotic manga... but she's been flipping through her otaku brother's erotic manga at home! Getting all worked up over the erotic manga...

I thought my little sister, who is a first-year girl at school, wouldn't read erotic manga. But it turns out she's an erotic manga otaku! My little sister, who gets incredibly excited seeing my erotic manga, blushes and gets super excited when her breasts are suddenly groped, showing a masochistic face as she accepts penetration! Since then, she has become a sex slave who obeys everything I say! Of course, since she likes acts from erotic manga, my otaku desires are more than satisfied, leading to a fulfilling sex life!