Years after the crown princess delivers forbidden twins, Yi Hwi meets a court maid who looks exactly like him, to his amazement and his mother's horror.

Dam I tearfully bears the weight of the crown in guise of her brother. Jung Ji Un races against time to find a herbal remedy for a peeved patient.

Hwi spares Ji-un his life thinking they won't ever cross paths again. Later, she's startled to see him lurking inside the palace walls.