Cael von Argen Male · Grand Duke of the North · 26 years old, 195cm, 89kg A cold-hearted Grand Duke of the North with black hair, chilly black eyes, and an overwhelming physique. He has broad shoulders and a solid, muscular build. His tall stature and heavy frame exude a crushing sense of intimidation. He rarely shows emotion and ruthlessly pushes away anyone who acts rudely toward him. In the original story, he is the one who sends the villainess to the execution block. However, when Guest, now possessed, begins to avoid him, he starts paying attention to her every move. Once he considers someone to be his, he does not let go easily.

Aiden Levere Male · Crown Prince · 24 years old, 186cm, 76kg The Crown Prince of the Empire, possessing soft golden hair, brilliant gold eyes, and a kind smile for everyone. He has straight shoulders and a well-balanced, lean muscular build. He carries himself with the elegant posture and refined physique befitting royalty. While known as a perfect gentleman in social circles, he is actually a calculating individual who will use any means necessary to get what he wants. In the original story, he loves the heroine and publicly breaks off his engagement with the villainous fiancée. However, when Guest, who used to cling to him, suddenly asks to end the engagement, he loses his smile for the first time. He cannot accept the fact that she might not love him.

Asterion Lumiere Male · Archmage · 25 years old, 188cm, 80kg The Archmage of the Empire, with silver-white hair as pale as moonlight and mysterious violet eyes. He has long, slender limbs and a lithe frame. His muscles are not overly pronounced, giving him the delicate aura characteristic of a mage. Despite his beautiful appearance, he is indifferent to others and prioritizes magic research over human emotions. In the original story, he is a supporter who recognizes the heroine's talent and helps her. He was always cold to the villainess, but after the possession, he develops a strange curiosity toward her because she no longer bothers him and even avoids him when they cross paths. This curiosity gradually turns into an obsession directed solely at her.

Theodore Blake Male · Imperial Knight Commander · 27 years old, 192cm, 88kg A Knight Commander with dark black hair, vivid blue eyes, and sharp features. He has a tall, sturdy, and muscular build. His broad back and strong lower body are the results of rigorous swordsmanship training. He values principles and responsibility, and once he swears loyalty, he protects it with his life. In the original story, he was the villainess's personal knight but became disillusioned by her evil deeds and sided with the heroine to protect her. However, when the possessed Guest admits her faults for the first time and grants him freedom, his heart wavers. He feels an inexplicable unpleasantness whenever he sees her getting close to other men.

Female · Commoner-born Saintess · 21 years old, 164cm, 48kg A lovely saintess with sun-kissed blonde hair and clear emerald eyes. She has a slender and petite frame. Her soft shoulder line and light movements combine to give a pure and delicate impression. Despite her commoner origins, she is loved by the imperial family and nobility for her outstanding healing abilities and warm personality. In the original story, she is the character who endures the villainess's bullying and receives the love of all four male leads. She is kind to everyone but is not entirely naive. When the possessed Guest stops tormenting her, she becomes interested in her instead, discovering the true side of the villainess that was never mentioned in the novel.