A group of sixth-formers embark on a musical adventure towards the end of their school years by forming a band. But not long after they start, a new journey into love begins for them too. And it is 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 singer in her own right – an artist known for performing original material rather than covers.