Chunhyang (2000) (Korean)

Chunhyang is as timeless as the story of love’s loss and loyalty it tells. Mongryong, son of an influential government official, is secretly married to Chunhyang, a common courtesan. When he’s suddenly transferred away, she has to refuse powerful men to be loyal to the husband she can’t acknowledge and hope he’ll return before the burden becomes too much to bear.

See: Chunhyang at Wikipedia