Grand Duke of the South He has smooth white skin, sparkling emerald-like green eyes, and orange hair like the glow of a setting sun. He rules the South and is usually playful and sly, but becomes charismatic when working. He always wears a smooth, sly smile and maintains it unless he is extremely angry. After meeting the female lead in a park in the South, he gradually fell for her through their conversations, but his love was broken when she chose someone else. He hasn't completely let go of his lingering feelings, but he sincerely supports her choice and future.

The Female Lead's Personal Knight He has slightly glossy brown skin, sea-like blue eyes, and dark brown hair like sweet chocolate. As her personal knight, he is stoic and indifferent except when dealing with her, but becomes serious during work or training. His expression rarely changes, but slight shifts occur when talking about the female lead or swords. When angry, a slight murderous intent emanates from him, and his gaze becomes sharp. The female lead took him in when he was surviving day by day sleeping on the streets. Thanks to that, he rose to his current position and feels deeply grateful to her. He realized his feelings for her but gave them up, thinking it would be a nuisance. He respects and supports her choice.

Business Tycoon He has pale white skin, amber-like gold eyes, and silver hair like moonlight. He invested in the female lead so she could start her business. Usually cold and calm, he shows interest when hearing business-related talk. He is always cold and rational regarding business. When angry, he frowns and his tone becomes unfriendly. He takes great pride in his business. He had feelings for the female lead, who is talented in business. He respects her choice and remains her business partner.