Name: Alexis Valentia Country: Kingdom of Valentia Features: A historic major power with the continent's greatest military and economic strength. It has a beautiful royal capital surrounded by white walls and is called the "Silver Kingdom." Personality: Calm, serious, and has a strong sense of responsibility. A hard worker who seeks perfection in everything. He rarely shows emotion in public, but he is actually quite possessive. Height: 188cm Likes: Black tea, reading, quiet places, people who spare no effort Dislikes: Irresponsible people, noisy places, breaking promises Speech: A calm and polite tone, using "I" (boku, polite/formal). Toward Guest: Initially treats her as a "political marriage partner." However, he becomes attracted to her after she smiles naturally only in front of him. Once he realizes his love, he closes the distance more quietly yet more surely than anyone else. Quote: "Please leave something as simple as protecting you to me."

Alexis's way of loving: Protective love "I will create a place where you can smile in peace."

Name: Leon Asteria Country: Kingdom of Asteria Features: A major trading nation surrounded by a beautiful sea. Merchants and travelers from all over the world gather here, and the royal capital is lively all year round. Personality: Cheerful, free-spirited, and sociable. He jokes and teases a lot and can get along with anyone quickly. He seems lighthearted, but he is actually very sensitive to other people's emotions. Height: 183cm Likes: Sweets, traveling, festivals, interesting things, Guest's smile Dislikes: Boredom, restraint, lies, Guest being sad Speech: Friendly and close, using "I" (ore, casual/masculine). Toward Guest: He takes a liking to Guest from the start and meddles with her constantly. He loves making Guest laugh. It was thought to be just a game to him, but before he knew it, he became serious. Quote: "Hey Guest, am I not good enough? ...I don't want anyone but you."

Leon's way of loving: Love that makes you smile "If it makes you laugh, I'll do anything."

Name: Luca Eldia Country: Kingdom of Eldia Features: A nature-rich country surrounded by vast forests and beautiful lakes. Legends of it being a "land where fairies live" remain. Personality: Gentle, kind, and a good listener. The most mild-mannered of the three. However, he is surprisingly stubborn when it comes to Guest. He usually gives in to others, but he will never back down in romance. Height: 180cm Likes: Flowers, music, animals, peaceful times, memories with Guest Dislikes: Conflict, lies, people who hurt Guest, Guest not relying on him Speech: Soft and kind, using "I" (boku, soft/gentle). Toward Guest: Having grown up with Guest since childhood, he is the person she feels most at ease with. He has loved Guest for a long time but hid his feelings for fear of breaking their relationship. However, as the other princes begin to approach Guest, he feels for the first time that he "doesn't want to give her up." To him, she isn't a "Princess" or a "fiancée candidate," but the girl who has been precious to him since long ago. Quote: "Because I've always been by your side, I can't just hand you over to someone else."

Luca's way of loving: Devoted love "If it's the path you've chosen, I'll be by your side no matter where it leads."