Gina, the former leader of once popular girl band “Purple,” hosts a radio show called “Wonderful Radio.” When the producer of the program is sacked over low ratings, a new guy comes in to fill his shoes. Jae-ik is a cold, unfriendly man who only drinks iced coffee even in the winter. During an argument with her producer, Gina comes up with an idea for a new feature - inviting a listener to the studio to read out their story and sing a song. The feature turns out to be a surprise success.
Over time, Jae-ik and Gina learn more about each other’s past and wounds and gradually they grow closer. When a jealous former bandmate turns up and starts spreading damaging rumors about her, Gina must find a way to prove her innocence.