Since losing her husband, Maiko has been supporting her family with insurance money and part-time income. However, her son Shou became troubled with job hunting and tended to withdraw, making the household finances even tighter. At that time, Maiko applied to an adult service shop for mature women, and her serious personality was recognized, leading to her employment. For three months, Maiko's work went smoothly, and she even gained regular big spenders. But one day, one of her customers, Saeki, requested a session at his home. Maiko ended up accepting that request.