Rieko Hosokawa, 53 years old. Married for 30 years, she has raised a family of four with her husband, who is ten years her senior, along with their adult daughter and college-student son. Even after retirement, she continues working through reemployment. Six months ago, while on a train, she noticed a couple flirting nearby and found herself saying out loud, "I'm jealous"—a moment that surprised her deeply. From that day on, something inside her began to stir, and she started enjoying masturbation again for the first time in years. This submission comes after she found and became intrigued by a recruitment post online, gathering the courage to reach out. Experience the genuine, heartfelt documentary of her excitement and embarrassment intertwining.