Ai and Nakahira, a new employee who works with her at her part-time job, end up going out for drinks after their shift. Her husband is working overtime, they're going home in the same direction, and it's Nakahira's first paycheck... Ai had all these reasons for going out for drinks. As they drank and talked, they looked at the clock and realized that the last train had missed [0:02]. It was raining heavily outside and they couldn't catch a taxi, and her husband called to say that he couldn't come home that day... Ai could no longer control the beast inside her. For a few hours until morning came, Ai let loose in a passionate affair late at night...