Hong RaOn disguises herself as a man and counsels men on dating. Due to a love letter she wrote for a client she meets Crown Prince Hyomyeong Park BoGum. Hong RaOn is unaware that he is the Crown Prince and Hyomyeong is unaware that Hong RaOn is a woman. The Crown Prince becomes interested in Hong RaOn. His eunuchs become aware of this and attempt to get Hong RaOn to become one of them.