Momoko, who is estranged from her husband who is working away from home, spends her boring days commuting between her part-time job and home. One day, she becomes interested in her colleague, a student named Hosoda, and decides to invite him out for a drink... From that day on, the two of them enter into a time-limited affair, and they continue to have hot and intense infidelity everywhere at work. Momoko, who has been violently violated many times in the infidelity that unfolds within the limited time, has begun to have a constant wet crotch whenever she starts work...