Just a few months after joining the company, Saito was found out to be a useless employee who couldn't do his job, and was very depressed when his senior colleague, Riho, spoke to him in an overbearing and aggressive manner. Meanwhile, he discovers a service called "acquaintance delivery health," where an acquaintance works as a delivery health girl, and when he calls her out of curiosity, Riho turns up. Surprised, he enjoys playing with Riho, but when he meets her at work later, he doesn't remember the delivery health service. "This is great," he thinks, and continues to call Riho as a delivery health girl many times after that, relieving his daily stress.