Gina, the former leader of once popular girl band "Purple," hosts a radio show called "Wonderful Radio." When the producer of the program is fired due to low ratings, a new guy comes in to fill his shoes. Jae-hyuk is a cold, unfriendly man who only drinks iced coffee, even in the winter. The easily irritable man and the conceited former diva are bound to get on each other's nerves at every corner. During another 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-hyuk and Gina learn more about each other's past history and gradually grow closer. Just as things begin to shape up, Mira enters the picture. Mira also was part of Gina's former band and hates her to the core. In an evil effort to take the DJ job from Gina, Mira spreads rumors that she has plagiarized her songs. After hearing about the spiteful accusation while on-air, Gina bursts out cursing in anger. Gina becomes deeply hurt when Jae-hyuk shows his disappointment in the incident. Gina decides to write songs again, hoping to mend her broken heart.