An overworked salaryman and a mischievous cashier with a dual personality form an unexpected bond in this sweet-and-sour comedy!

Summer arrives, and the slow burn continues... When Sasaki's subordinate wins a work award, the downtrodden salesman must choose whether to confront his fear of visiting the company's head office. Meanwhile, Yamada attends the local summer festival with her supermarket coworkers, but she can't get Sasaki off her mind. Then, Yamada's jealous coworker friend, Kawakami, issues a challenge to Sasaki! If he loses, he'll never get to smoke with Tayama again.