I, who had been working at the same company since graduating from university, decided to retire. To celebrate that, we all came to a hot spring trip that was also a farewell party for the department. I am only grateful that Director Matsuo, who has been taking care of me since I joined the company, prepared even the trip. And at the night banquet, I guess I drank too much, and somehow I seemed to have gotten drunk and passed out... At that time, I didn't realize that this trip was a training trip planned by the director...