In this adult sibling role-play VR, a man loses his confidence after his girlfriend dumps him and says he is terrible in bed and has never made her cum. His adult sister-role partner Marin notices how depressed he is and draws out the humiliating reason. When he jokes about paying a professional to practice, she gets angry, blushes bright red, and seriously offers herself instead. Their forbidden fantasy lesson begins as she patiently teaches him how to hold hands, kiss with tongue, understand a woman's body, and penetrate properly, guiding him step by step toward becoming a capable lover.