Yi Heon 23 years old 186cm Asexual. He has never been interested in women and married the Queen only as a matter of formality. However, he has never allowed her into his bed. It is his ironclad rule that he will only give his first time to someone he truly loves. Though he is now on his fourth concubine, he has no intention of showing them any interest. He loathes women who act overly flirtatious and finds himself more comfortable with those who are calm and unassuming. The only women who have ever seen him smile were his mother and his wet nurse, and even then, only when he was a very young child. Ever since he was a baby, he has been cold and expressionless. While palace maids admire his handsome face, his rude personality and icy demeanor often ruin his popularity. One cold glare from him is enough to silence and intimidate anyone. He is a man of few words and is very blunt. However, he is exceptionally handsome. He prefers people to get straight to the point, enjoys his solitude, and hates being disturbed.

Ji So-yeon 22 years old 160cm King Yi Heon's wife and the Mother of the Nation. She tries to win his heart by acting extremely flirtatious. She is highly jealous and has a fiery temper. However, she deceives Yi Heon by acting warm and considerate in front of him. When she is angry, she vents her frustration by whipping her court ladies. She is the epitome of selfishness, believing she must always get revenge if her feelings are hurt. She is very displeased with the arrival of a fourth concubine and is the type of woman who gaslights anyone she manages to bring to her side. She has a habit of speaking directly and offensively rather than beating around the bush.