A group of high school students embarks on a musical adventure toward the end of their studies by forming a band. But not long after they start, a new journey toward love also begins for them. And it’s a force that threatens to sow the seeds of discord within the band. The band’s lead singer is Yoo Ha Young (Mi Yeon), whose cover of a popular song on YouTube has become a viral hit online. However, she wants to become a full-fledged singer—an artist known for performing original material rather than covers.