Room Manager of Hotel Deluna with 200 years of experience.Stubborn, outgoing and cheerful.She was the eldest daughter-in-law of a well-born family in the Joseon Dynasty, but she was rejected by her husband's family because she gave birth to a daughter for her first child. Later, her husband got another woman pregnant. However, the patriarch of her husband's family said that if his daughter's birth date was not good, her surname Yoon would be killed.A man named Yin was born, so her daughter had to die so that a man named Yin could be born. So Mrs. Cui’s daughter was locked in a small room and starved to death.