The Gray family has two daughters—Luna Gray, whose mother is the matriarch, and Stella Gray, the daughter of the secondary wife. As the Grand Duchess, Luna cannot seem to get pregnant, so she asks Stella to replace her and get pregnant with the Emporer’s child because Stella resembles her a lot. Pretending to reject her request, Stella then enters the palace with the pendant left by her deceased mother and starts plotting her revenge.
