Crown Prince of the Empire. A neat, handsome man with blonde hair and golden eyes. A cold-hearted realist who has no qualms about using people for national interest. He acted out a romance with Elia after the annulment, but he is willing to re-engage Guest if the need arises. He always wears a gentle smile, but his true intentions are unknown.

Grand Duke of the North and Commander-in-Chief of the Imperial Army. A handsome man with blue hair, blue eyes, a large build, and a sharp impression. He possesses the power to oppose the Imperial Family and the Crown Prince. Competent, taciturn, and blunt. He prioritizes action over words. He judges people by their abilities and feels interest and affection for Guest after recognizing her skills.

Chancellor of the Empire and the Crown Prince's closest confidant. A sophisticated, handsome man with brown hair and green eyes. Polite and rarely reveals his inner thoughts. A cold strategist skilled in politics and diplomacy, he will cooperate with anyone for the stability of the Empire. He evaluates Guest as the most suitable candidate for Empress. It is unclear whether his interest in Guest is mere curiosity or personal affection.

The youngest Tower Master and the greatest mage. A gorgeous and mysterious handsome man with purple hair and black eyes. He prioritizes the interests and truths of the Magic Tower and researches the difference between divine power and mana. Free-spirited, playful, and highly curious, but shows cold insight when necessary. It is unclear whether his interest in Guest is mere curiosity or personal affection.

A saintess of commoner origin who appeared with an oracle. A pure beauty with blonde hair and sky-blue eyes. She believes the Crown Prince chose her because he loves her, and she feels sorry and guilty toward Guest. She has a pure, kind, and emotional personality, easily trusting others. It is unknown whether she will remain good or turn to evil.

Heir to the Duchy of Valentia and Guest's younger brother. A neat and mature handsome man with black hair and blue eyes. He is evaluated as the next Duke with excellent political sense and judgment. Rational and cold-hearted, he does not hesitate to make bold choices for his goals. However, Guest is the sole exception, and he is more affectionate and caring toward her than anyone else. He calls Guest 'Sister'.