Nakamura had a crush on his boss Umino. But he only admired her for her work ethic. One day, after a business trip, Nakamura and Umino went out for a drink together, and Umino's cute, girlish side was revealed. Nakamura fell in love with Umino as a woman when she became dependent on him. Things were going well with Umino in a private room at a bar, and Nakamura purposely made Umino miss the last train, saying that it was nearing the end of the line, but he wanted to spend more time with her. The two drunk men spent the night together. This incident marked the beginning of a relationship that was no longer that of boss and subordinate.