Seong Chun-hyang.

Chun-hyang, the only daughter of an old gisaeng named Wolmae, falls in love with Lee Mong-nyong and promises to marry him. But Lee leaves for Seoul with his father who's an aristocrat, and the new governor, Byeon Hakdo, covets Chun-hyang because she is the most beautiful girl in town. When Chun-hyang rejects his order to serve him at night, Governor Byeon sends her to jail. In the mean time, Lee passes the state exam and becomes a special undercover agent of the king. He comes back to where Chun-hyang lives to save her and punishes Governor Byeon.