Yi Eon is a food-loving ordinary young man who works at the palace. One day, one of the secret royal inspectors comes back seriously ill, and therefore, Yi Eon is chosen as the next secret royal inspector. Meanwhile, Jo Yi who wants to get a divorce from her current husband Chu Han needs evidence that he is a gambling addict in order to make it happen. When she asks her best friend Bo Ri to help her, but she tells her a shocking news.
