Hiroto, who has lived with just his father since he was young, has always admired his friend's mother, Rieko, and has developed feelings similar to love for her. However, being ignorant about sex, he doesn't know how to calm his rising excitement and eventually confides in her. Though surprised by his confession, Rieko secretly teaches him... Lost in the new sensations, Hiroto can't hold back and pushes her down, wildly thrusting his hips. Under his relentless movements, Rieko reaches climax multiple times...
