Beautiful and virtuous mother Yurie Matsushima meets two of her son's friends, timid boys she brings along. Unbeknownst to her, these two once bullied her son in the past. One day, they discover that the mother is playing in a mothers' volleyball league. After practice, her body begins to react strongly to the presence of these young, confident boys. The aroused friends suddenly attack the mother, thrusting into her violently over and over, raping her relentlessly. The horrific scene unfolds right before her son's eyes, as the two friends pound into her again and again, forcing her to climax while moaning in helpless ecstasy. In the most humiliating ending imaginable, she is stripped of dignity, exposed before her beloved child, and driven to unwanted orgasm against her will.