The story takes place during the Joseon Dynasty, at a time when twins were seen as an ominous sign. As a result, when the Crown Princess attendant gives birth to twins, an order is sent to kill the daughter. To save her, she was secretly sent from the palace.
A few years later, the twin daughter Dam Yi returned to the palace to work as a maid. When the twin male, Lee Hwi, loses his life through a case of misidentification, after her mother introduces her daughter as a court maid Dam Yi, convinces her to take Lee Hwi’s place. Although she distances herself from everyone else, Dam Yi begins to develop feelings for Jung Ji Woon, her original first love and later mentor who hails from a noble family.
