Sara is a simple girl from Missouri, but she moves to Korea during high school. She gets a job at a restaurant years later in Korea to play the guitar and sing every night for customers. Park Chanyeol from idol boy group, EXO, is her ex-boyfriend from high school, but she still has feelings for him. One night, one of Chanyeol's stylists approaches Sara at the restaurant and asks her to work with Chanyeol on a new song for his side music career. Will they somehow find love again? And will Chanyeol take her back?