During the Joseon Dynasty, lowborn Chae-sun challenges the rule that states only men allowed to sing while navigating devotion to her teacher and the demands of the king's father.
Ryu Seung-ryong
Bae Suzy
Kim Nam-gil
Noh Young-hak
Song Sae-byuk
Lee Dong-hwi
Ahn Jae-hong
Hwang Chae-won
Kim Tae-hun
Jin Sun-kyu
Kim So-jin
Kim Byeong-soon
Ryu Han-bi
Lee Yu-mi
Park Gyu-ri