I spend my days filled with studying and masturbation. But because of my parents' remarriage, I ended up with a slutty gal sister, and my life changed completely! Every day is noisy and irritating! When I went to complain, I was told 'You're annoying,' and in the end, I was forcibly assaulted and lost my virginity... Should I let this grudge go? The sex battle erupts involving me and my slutty gal sister's friends! My dick goes full throttle against the aggressive erotic gal! Unrivaled state!
