After witnessing a charming exchange between Momose and Shirosaki, Kinjo, harassed by his boss just like Momose, decides to change jobs. Kinjo manages to switch careers, landing at the same company as the other two, with Aoyama in charge of his training. Then, one day after work, Momose, Shirosaki, Aoyama, and Kinjo decide to all go out for drinks. Kinjo is concerned when Momose states, "I've never gotten drunk at a drinking party with my bosses before." Will Momose be able to get drunk at this drinking party?

The group – Momose, Shirosaki, Aoyama, and Kinjo – end up going to a last-minute mixer. Momose becomes depressed when bad memories resurface of a mixer he attended with his previous boss. But as the current mixer kicks off, Momose and the others get absorbed in Aoyama's story. When Kinjo follows Aoyama, who had left his seat during the mixer, and asks if there's anyone he is interested in, Aoyama becomes somewhat evasive. It seems there is a reason that Aoyama has become the life of the party…!