The employee promotion system, which had been used as bait for recruiting new employees, was converted into a trump card for the labor shortage problem. Kana, who normally would not have been hired, was promoted to a full-time employee. However, Kana has never had the burden of responsibility before, and her self-conscious personality is also a liability, and everything she does falls flat. One day, the chef, who is annoyed with her, says something that puts Kana in a humiliating position she has never experienced before.... It was literally the moment when a non-regular employee became a sex worker.