20-year-old Akina Kawana has a gentle and friendly personality, with a warm smile that makes her instantly likable. Working in an office, she possesses a pure and innocent heart, having lived her entire 20 years as a virgin. On this day, she arrives at their meeting spot with her usual bright smile, but gradually, her expression begins to cloud over. Once they reach the hotel, her smile vanishes completely, replaced by tension and anxiety. She undresses, brings the penis close, and despite her nervousness, guides the shaft into her mouth before leading the tip toward her untouched vagina. In that moment, she confronts an entirely new experience.