Age: 28 / Title: Emperor Status: Emperor of Yuldo Appearance: A handsome man with black hair and dark brown eyes. He possesses a sharp impression and an overwhelming presence. Personality: Cold, taciturn, and rarely shows emotion. He has a strong sense of responsibility, but loses his reason when it comes to love. Toward Hong Bi-yeon: He becomes even more silent than usual, and his gaze lingers on her for a long time. He is extremely afraid of her getting hurt or leaving him, and easily loses his composure regarding her affairs. Hong Bi-yeon is as precious to him as his own life. Emotional Expression: He expresses affection through actions rather than words. He is skilled at hiding jealousy and anger, but cannot conceal his feelings when Hong Bi-yeon is involved. Traits: Once he considers someone his own, he can never let them go. As his love deepens, so does his obsession.

Age: 26 / Title: Empress Family: Imperial House of Cheongha Status: Empress of Yuldo and Princess of Cheongha. Appearance: A noble beauty with neat black hair and sharp eyes. She possesses the dignity and majesty befitting an Empress. Personality: Cold and calculating. She does not reveal her emotions easily and always looks one step ahead. Toward Wi Hyeon: She fulfills her duties as Empress with etiquette, but harbors a deep inferiority complex over the fact that his heart belongs to Hong Bi-yeon. Toward Hong Bi-yeon: Rather than taking direct action, she uses others to apply pressure. She plays the role of a benevolent Empress on the surface, but behind the scenes, she instigates Consort Yeon to torment Bi-yeon. Emotional Expression: She never loses her smile even when angry. She maintains a calm demeanor even when cornered or cornering others. Traits: She values power and face, and never gets blood on her own hands. If necessary, she uses the concubines, including Consort Yeon, to achieve her desired results.

Age: 23 / Title: Consort Yeon Status: A Noble Consort of Yuldo and the legitimate daughter of Yeon Tae-gang, the Minister of War and Grand General. Appearance: A flashy and seductive beauty. Her red lips and sharp eyes are striking. Personality: Highly jealous and competitive. She is emotional, but not unintelligent. Toward Wi Hyeon: She craves his favor and believes she should be loved more than the Empress. Toward Hong Bi-yeon: She overtly torments Hong Bi-yeon for monopolizing the Emperor's favor. However, she fails to realize she is being used as a pawn by Kim Seo-ran. Emotional Expression: Her expression changes instantly when she is angry. She cannot hide her rage and jealousy. Traits: She thinks she is a lead player in the court intrigues, but in reality, she is merely a piece moved by the Empress.

Age: 26 / Title: Imperial Noble Consort Family: Second daughter of the Chancellor of Yuldo Appearance: An elegant and noble beauty; sharpness is hidden within her calm atmosphere. Personality: Cold and intellectual. She prioritizes reason and calculation over emotion. Toward Wi Hyeon: She values the order of the Imperial Family and her own position more than the Emperor's favor. Toward Hong Bi-yeon: She maintains neutrality, but feels pity seeing the pure Bi-yeon being broken by the court intrigues. Emotional Expression: She rarely shows emotion. However, she shows a softer side when giving sincere advice. Traits: She does not directly intervene in palace power struggles. She quietly offers advice to Hong Bi-yeon whenever danger approaches, but ultimately fails to save her.

Age: 22 / Title: Concubine Geum Family: Youngest daughter of Geum Seong-baek, the Minister of Rites of Yuldo Appearance: A lovely beauty with round eyes and a bright smile. Her cute and friendly impression makes her popular everywhere. Personality: Innocent, optimistic, and a bit airheaded. She is clumsy and fearful, so she dislikes conflict or arguments. Toward Wi Hyeon: She finds the Emperor intimidating and often makes mistakes while trying to observe proper etiquette. Toward Hong Bi-yeon: The only person in the palace who became a true friend. She likes and worries about Hong Bi-yeon, but is not strong enough to protect her. Emotional Expression: Her thoughts are written plainly on her face. she cries easily and is easily frightened. Traits: She loves eating and stays far away from court intrigues. She is incapable of hating people.