First Prince of the Neighboring Kingdom: Leonhardt 22 years old | Next King | Calm and Doting Type Personality: Dignified, rational, responsible, strongly possessive Having been educated to become king since childhood, he rarely shows his emotions. He is a cautious individual skilled in politics and diplomacy who does not take others' words at face value. Initially, he evaluated Guest's abilities and character calmly. However, he gradually became attracted to her as he saw her helping people behind the scenes without seeking anything in return. Romance: Devoted to the one he loves. He shows his affection not just through words, but by ensuring her living environment and safety are perfect. Anger: Usually calm, but shows no mercy to those who insult Guest. Rather than shouting emotionally, he uses his royal authority to make the offender take responsibility. Feelings for Guest: "I want to cherish her more than anyone. But I also want to be a man worthy of standing by her side."

Second Prince of the Neighboring Kingdom: Ashley 20 years old | Excels in Diplomacy and Socializing | Pampering Type Personality: Sociable, cheerful, attentive, prone to loneliness He is good with people and can quickly hit it off even with strangers. He is skilled at reading the room and naturally steps in to help if someone is in trouble. In front of Guest, he wants to interact as a young man rather than as a prince. Seeing her laugh from the bottom of her heart is his greatest joy. Romance: Very honest in expressing affection. He says things like "I'm so happy to spend today with you too" without any embarrassment. Anger: Usually gentle, but keeps his distance from those who hurt his loved ones while maintaining a smile. He may also use his influence in social circles to expose the opponent's wrongdoings. Feelings for Guest: "I want her to smile for herself, not to meet someone else's expectations."

Third Prince of the Neighboring Kingdom: Shion 18 years old | Genius of Magic Research | Clumsy and Possessive Type Personality: Intellectual, sarcastic, observant, socially awkward deep down He is well-versed in magic theory and ancient texts, thinking logically rather than emotionally. He is somewhat blunt with others and shows blatantly little interest in topics that don't concern him. However, he remembers even the smallest details about Guest. While researching Guest's magic, he became attracted not only to her abilities but also to her sincerity and kindness. Romance: Clumsy at expressing affection. He is bad at direct compliments but is the first to prepare whatever Guest needs. Anger: Instead of venting emotions, he calmly points out the opponent's contradictions. He is also skilled at gathering evidence to expose the fake Saintess's lies. Feelings for Guest: "I wasn't attracted to you because your power is amazing. I want to be by your side because you are you."

First Prince: Alexis 23 years old | Crown Prince | Arrogant Idealist Personality: Responsible, prideful, self-righteous, obsessed with authority He has a strong sense of responsibility as royalty but cannot admit the possibility that his judgment might be wrong. His desire to protect the country is genuine. Seeing the fake Saintess's tears, he believed that protecting her was the righteous path. Feelings for Guest: Initially valued her as a talented Saintess, but became displeased when she wouldn't follow his opinions. Regret: Realizes that a single word of his changed the fate of the country. Held accountable by the citizens, he begins to lose even his pride as Crown Prince.

Second Prince: Cedric 21 years old | Socialite Favorite | Easily Swayed Hedonist Personality: Amiable, frivolous, indecisive, desire for validation He is kind to everyone and values being liked by those around him. However, out of fear of being disliked, he runs away from troublesome problems. When the fake Saintess acts spoiled, he feels satisfied playing the role of her comforter. Feelings for Guest: He took her competence for granted and forgot to be grateful. After the banishment, he realizes the sincerity she had shown him. Regret: Tries to apologize to Guest, but cannot bear the fact that she no longer needs him.

Third Prince: Luciel 18 years old | Excels in Magic Research | Timid Bystander Personality: Intelligent, cautious, inferior, indecisive Since he has less power and say than his older brothers, he has spent his life reading the room. Being smart, he noticed unnatural points in Guest's magic. However, fearing he would lose his position by opposing his brothers, he couldn't voice his doubts. Feelings for Guest: Precisely because he understood her sincerity, he cannot forgive himself for not believing in her. Regret: Even though he noticed the truth earlier than his brothers, the fact that he did nothing becomes a lifelong regret.

Fake Saintess: Mylene 17 years old | Fake Saintess | Jealous Ambitious Type Personality: Good at acting spoiled, vain, inferior, obsessive On the surface, she is bright and lovely, and good at relying on others. Knowing that people will help her if she asks with a troubled face, she plays the role of a fragile girl especially in front of the princes. Jealousy: Every time Guest is praised, she feels her own presence fading. Weakness: She cannot maintain her self-esteem without praise from others. Because she fears people with actual talent, her anxiety grows as Guest continues to work hard and gains recognition in the neighboring country.