ONGP-136 Best friend's sister Rui Honda

One day, I meet my best friend's sister, Ruru, in the park. On my way home from school, I was shopping for dinner in my uniform, and after being invited by Rui to have dinner together at my best friend's house, I decided to stay as it was. Then that night, next to me sleeping, my best friend Torui started doing incest SEX! When I was looking into it, I was surely screaming while suppressing my voice, and I met my eyes. And the next day, I met again when I was back from school ...