Eyes that sparkle like jewels, a smile that captivates us in an instant—Rio Saeki, 30 years old. From the moment we met, she was friendly, lovely, and enchanting... but behind that charm lay a lewd true self. She shyly confessed that she has been sexless for three years, and at her peak, she indulges in masturbation up to eight times a week while watching AV. A rough diamond in development, whose brilliance increases the more she is polished. And the moment she stripped, her angelic smile shone obscenely, revealing a woman drowning in her first affair sex...