Recently, Yuka became close with Kuroi, a student at the same place where she works part-time. With a faint hope in mind, the two of them went out drinking together... Unable to suppress the throbbing in her uterus, she suddenly felt a thrill in the midst of her busy days with housework and childcare, and she accepted his passionate feelings and began a time-limited affair. Since then, she has been having affairs with him in between work, no matter where, and indulging in pleasure in the limited time she has. With the anticipation of the quick sex that has become a daily routine, Yuka is working with her crotch getting wet...