Goo Hae Ra (Min Hyo Rin) is 21 years old. Her dream is to debut as a singer to let people know about her late father’s musical compositions. She then takes part in the music TV contest program “Super Star K 2″ with her childhood twin friends Kang Se Jong (Kwak Si Yang) and Kang Se Chan (Jin Young).
They get through the local tryouts and are selected to take part in the program. At super week, Hae Ra, Se Jong and Se Chan area teamed with Henry (Henry Lau), Lee Woo Ri (Yoo Sung Eun) and Jang Goon (Park Kwang Sun), but they lose due to unexpected incident. They then go back to their daily lives.
Several years later, through a shocking incident, the team gather again and make their debut.