The employees are excited to announce that we are going on a three-day, two-night company trip. However, Mukai, a married receptionist who has just joined the company, and I, a new employee, are ordered to stay behind. Alone with the receptionist I admire in the spacious and quiet office, a dreamlike moment begins. Then, due to an unexpected turn of events, we suddenly became close, and we made love again and again. At the reception desk, in the conference room, at the desk, we forgot about our guilt and made love to each other from the start of the shift to the end. And then, on the third and final day...