With her husband away on a business trip, Reiko's days are filled with the tedium of housework, childcare and a part-time job. Recently, she has become close with Azuma, a student whose part-time job overlaps with her schedule... Taking advantage of her husband's absence, she has agreed to a time-limited affair. Since then, the two have been repeatedly engaging in intense infidelity in between work, wherever they go. In the limited time they have, Reiko's body becomes violently aroused as she indulges in intense pleasure. Before she knows it, she is throbbing around the clock, and her body is constantly hot and wet, craving the young man's cock...