Sakurai Yumi came to visit her best friend for advice about her husband's pathological cheating habits. She was fed up with his excuses like "I just have an abnormally high sex drive" and "women throw themselves at me," until finally snapping, "Let me see just how valuable that pathetic little cock really is!" and yanking his pants down. What emerged was a massive, thick, impressively erect cock. Initially meant as a joke, Yumi was left breathless and mesmerized by the sight. As her pent-up sexual frustration overwhelms her, the story unfolds with her scheming ways to get that hypersexual cock deep inside her.