35-year-old housewife Mariko Oishi (pseudonym) leads a dual life as a homemaker and owner of a gardening goods shop. With no children, her relationship with her husband has become platonic, leaving her sex life unfulfilled. Yet she secretly responds to ads seeking women for outdoor gangbangs and public humiliation, calmly smiling as she submits to every demand. How can she maintain a cheerful expression while being used by strange men in degrading acts? This film explores the truth behind her mysterious desires.