Shin Gi-na (Lee Min-Jeong), a former leader of a popular girl group, now host of radio show called Wonderful Radio. When the producer is sacked due to low ratings, new guy Lee Jae-ik (Lee Jung-jin) is hired in his place. Lee is cold and unfriendly who only drinks iced coffee even in winter. The easily irritable Lee and the conceited former diva constantly gets on each other’s nerves. During yet another argument with Lee, Shin comes up with an idea for a new feature – invite a listener to the studio to read out their story and sing a song. It turns out to be a surprise success. Over time, Lee and Shin learn more about each other and gradually they grow closer.