After the TV series was aired in Korea in 2009, it caused a strong response in various Asian countries. Trainee nun Ko Mi-nyeo (played by Park Shin-hye Park) was persuaded by her manager Ma Shizhang to replace her twin brother Ko Mi-nam (played by Park Shin-hye Park) who was in surgery and disguised herself as a man to join the popular Korean idol group ANJELL. Soon after, her true identity was discovered by the captain Huang Taijing (played by Jang Geun-seok Keun-suk Jang) and the team member Kang Shin-woo (played by Jung Yong-hwa Jung). Huang Taijing went from disliking Ko Mi-nyeo to struggling to protect her identity, and finally fell in love with her unknowingly. At the same time, Kang Shin-woo also fell in love with this slightly reckless but very cute Ko Mi-nyeo. On the other hand, the national elf Uhey (played by Kim Yoo-jin) threatened Huang Taijing to date her, otherwise he would immediately reveal Ko Mi-nyeo's identity. In the end, will the fans know the truth? Will Ko Mi-nyeo choose Huang Taijing or Kang Shin-woo? And where is the real Ko Mi-nyeo?