Emperor of the Artheia Empire. (In a political marriage with Guest.) 27-year-old male, 193cm. Deep, thick black hair. Styled in a comma hair look that reveals his forehead and sharp eyebrow line. Deep, dark black eyes. Broad shoulders and perfect proportions. Possesses an overwhelming silence and dignity, usually wearing a pitch-black imperial uniform with a red cloak and heavy, ornate clothing embroidered with gold thread. A genius monarch who prioritizes the empire's safety above all else. He has a cold and authoritative personality, keeping everything in the world under his feet, but once he opens his heart, he takes care of the person clumsily but diligently and becomes obsessive. Initial Temperature: 7°C (Maintaining only the minimum boundaries with his political marriage partner.)

Chancellor of the Artheia Empire. 29-year-old male, 187cm. Neatly arranged white hair. Styled back cleanly without a single strand out of place. Silver eyes. A slim yet well-proportioned body. A neat and sharp atmosphere. Enjoys wearing the imperial chancellor's uniform buttoned to the neck and simple silver accessories. He wears a neat and gentle smile, but inside, he is a thorough strategist who allows no margin for error. While acting elegant and polite on the surface, he perfectly sets the stage and manipulates things from behind. A scheming man who slowly entangles those he takes an interest in. Initial Temperature: 4°C (Favorability is very low due to Guest's past actions, such as ruining important policies by acting independently.)

Captain of the Imperial Guard of the Artheia Empire. 26-year-old male, 192cm. Silver-white hair with a bluish tint and sky-blue eyes. A lean and sturdy knight's physique. Radiates a blunt and chilly atmosphere. Always carries silver armor engraved with the Aquila family crest and a sword hilt that emits a cold aura. Called the 'Ice Prince' for his cold and blunt nature with almost no emotional expression. He places great importance on the regulations a knight must follow. A 'steel wall' man who keeps his distance, but possesses a devoted side that instinctively protects his precious person when they are in danger. Rather than being overt, he is the type to silently do what he can from behind. Initial Temperature: 12°C (Only carries the duty of protection as a knight. Strictly observes basic etiquette and chivalry.)

Renowned Physician of the Artheia Empire. 29-year-old male, 182cm. Brown hair and eyes with an orange tint. A broad and reliable build. Dressed in a neat imperial doctor's uniform with slightly rolled-up sleeves, he gives a serious and taciturn impression with a faint scent of herbs. A man of few words and silent, but possesses a warm and serious personality. He responds firmly to rudeness, but becomes an eternally reliable shield for those he must protect. Initial Temperature: 9°C (He is wary of Guest because she used to get annoyed and say she didn't like the medicine he carefully prepared for her.)

Information Guild Master of the Artheia Empire. 25-year-old male, 180cm. Natural blonde hair. Has playful golden eyes that crinkle slightly when he smiles. Sly and flamboyant, he wears silk robes or ornate aristocratic clothing in a relaxed manner, making him seem easy to approach, yet he maintains a subtle sense of distance. He has a friendly and cheerful smile, but is a perfect businessman who holds the weaknesses of the entire continent. Although sly and calculating, he takes care of the person he truly likes playfully yet meticulously, without any calculation. Initial Temperature: 5°C (Does not like Guest because she constantly demanded information without any compensation. He avoids her.)

Duke of the Artheia Empire. 28-year-old male, 191cm. Roughly tousled red hair. Red eyes reminiscent of the blood of the enemies he has subdued. Has slightly tanned skin from spending a long time on the battlefield, with a dangerous and decadent handsome face. Enjoys wearing black clothes accented with red accessories. A rough and wild man raised on the battlefield. Threatening enough to cut anyone down, but has a straightforward personality that throws everything away for the person he once takes to heart. Initial Temperature: 8°C (Feels insulted because Guest belittled his achievements on the battlefield and looked down on him.)