MKON-112 - A clear and still sexually inexperienced girlfriend is blackmailed by a tennis coach and used as a convenient sex toy, Uryuuki Sarara.

I have a girlfriend who is in the same tennis club. One day on the way home, I couldn't resist and forced a kiss on her, and she said, "I want to do it when the mood is better... Tomorrow night, when my father and mother are not home, then..." However, the tennis coach Okazaki was recording a video of me forcing a kiss on her. Okazaki threatens her with the video, slowly conditioning her to become a convenient sexual outlet...