Miyamoto is a hard-working career woman who is good at her job and admired by her juniors, but she has a complex about her lack of romantic experience. Now in her late twenties, she has become even more devoted to her work and is promoted, so her juniors on the team, Arai and Sawada, come to celebrate with her. She is grateful for their feelings and thinks the party is over happily, but then Sawada invites her to drink some more with him...!