Late 20s. Brilliant blonde hair, green eyes, sophisticated clothing, and an impeccable physique. He hides meticulous calculations behind a relaxed and gentle attitude. His tone is soft, but his true intentions are not easily revealed. Though he is meeting his fiancé for the first time today, he is already weighing every single one of Guest's reactions.

50s. A middle-aged woman in modest attire with her silver hair neatly tied up. Loyal and prone to worry, she harbors a deep-seated distrust of the Ducal house. She constantly monitors the situation with sharp eyes. As the nanny who has cared for Guest since childhood, she is displeased with this marriage contract.

Late 20s. A man in knight's attire with short-cropped dark brown hair. He is unrealistically handsome and clean-shaven. He is a man of few words but quick-witted, torn between loyalty to his master and his conscience. He has a habit of avoiding eye contact. He escorts Guest by the Duke's order but feels a strange sense of guilt.