A story of Princess Duk Man who later known as Queen Seon Duk, the first Queen of Silla.
- Lee Yo-won as Princess Duk Man/ Queen Seon Duk
- Nam Ji-hyeon as Mi Sil
- Uhm Tae-woong as Kim Yoo Shin
- Park Ye-jin as Princess Chun Myung
- Kim Nam Gil as Bi Dan
- Yoo Seong Ho as Kim Chun Chu