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

Sasaki's rivalry with Kawakami over Tayama stirs up an unexpected realization as well as doubt for the overworked office drone. As he tries to get to know both Tayama and Yamada better, his suspicions grow... Meanwhile, a problem customer unsettles Yamada. Sasaki then reels in shock to hear Yamada is missing. He's forced to face his past and decide whether to step in during the store employees' crisis.