Based on the real story of Shin Jae-Hyo and Chae-Sun.

In 1867, Shin Jae-Hyo (Ryoo Seung-Ryong) leads the Dongrijungsa which teaches pansori (traditional Korean musical storytelling). A young girl, Chae-Sun (Bae Suzy), who wants to perform pansori, appears in front of him. Chae-Sun has dreamed of performing pansori since she first heard Shin Jae-Hyo perform when she was little, but Shin Jae-Hyo turns her down because women are not allowed to perform pansori.

Chae-Sun then disguises herself as a man and enters the Dongrijungsa to learn pansori, but Shin Jae-Hyo doesn’t accept her as his student. One day, he hears Daewongun (Kim Nam-Gil), the most powerful man in Joseon and the father of the King, is going to hold a national competition of pansori performers known as “Naksungyeon.” Shin Jae-Hyo decides to teach Chae-Sun who has a true voice to perform “Chunhyangga.” If anyone finds out that Chae-Sun is a woman, Shin Jae-Hyo and Chae-Sun will both face death.​