Description：Han Ji-soo (Kim Ah-joong) is a popular star who is deeply loved by the people, but her original intention of entering the entertainment industry was to earn medical expenses for her seriously ill mother. Ji-soo's boyfriend Kim Jiangmo (Zhou Sang-wook) helped Ji-soo a lot along the way. Although their relationship can only be maintained underground, the feelings between them are indeed very deep. Unfortunately, in order to take into account her father's election, Jiangmo is engaged to the eldest daughter of a chaebol family. With this idea in mind, "I can't be a stumbling block to my boyfriend", Ji-soo found an ordinary postman Gu Dongbaek (Hwang Jung-min) who she met by chance to become her "fake boyfriend". Gu Dongbaek is an honest and shy man. The sudden appearance of his "superstar girlfriend" has brought a storm to his ordinary life. What kind of laughter and tears are waiting for the two of them?