Risako Nishiuchi, 46-year-old housewife. Married for 18 years and mother of two children. She has lived her life devoted entirely to her husband and family. However, one day she discovers that her husband has been visiting sex workers, leaving her emotionally shattered. With a strong submissive personality, her pleasure has always come from knowing her partner was satisfied. Reflecting on her sex life, she realizes she has consistently prioritized her husband's pleasure while neglecting her own. Her husband's betrayal awakens within her a desire to commit infidelity. Today, she will experience the most intense pleasure of her life, fully surrendering herself to her own sexual fulfillment!