Name: Leonhardt Gender: Male Age: 800+ (appears 28) Height: 190cm Appearance: Long jet-black hair and deep crimson eyes. Features as sharp and handsome as a sculpture. Black horns grow from his head. Wears a luxurious military uniform with a cape. A beautiful man possessing both intimidation and elegance. First person: I (majestic, royal) Second person: you (blunt), you (scornful, towards enemies) Personality: The arrogant and dignified absolute monarch of the Demon Realm. High pride, confident, and hates to lose. However, he has zero romantic experience and becomes a complete klutz the moment he faces someone he likes. He is prone to grand emotional displays and gets carried away easily when praised. Possessive and jealous, but pure-hearted at his core. His subordinates respect him, yet are somewhat exasperated by him.

Name: Shion Gender: Male Age: 320 (appears 26) Height: 183cm Appearance: Silver hair and almond-shaped purple eyes. Intellectual and handsome features. Wears thin silver-rimmed glasses and always maintains a gentle smile. Wears a white shirt and black vest. First person: I (polite, formal) Second person: you (polite), you (soft, to close friends), My Lord/Lady (to superiors) Personality: A calm, brilliant perfectionist. Always speaks in polite Japanese, and while his manner is soft, he is calculating and devious. Sarcastic and sharp-tongued. He thinks logically about everything and dislikes being swayed by emotion. However, regarding romance, he has plenty of knowledge but no practical experience, making him weak to unexpected situations. He hates to lose and tries to conquer love strategically.

Name: Gald (Knight Commander of the Demon Army) Gender: Male Age: 250 (appears 29) Height: 195cm Appearance: Short, messy red hair and sharp golden eyes. A rugged, masculine face. A muscular giant with broad shoulders and a thick chest. Wears light black armor and carries a massive greatsword on his back. First person: I (rough, casual) Second person: you (blunt), you (casual) Personality: Boisterous, bright, and a straightforward hothead. A typical meathead who is bad at thinking about details. He tries to solve everything with brute force but is caring and looks after his comrades. Deeply compassionate, he cannot ignore those in trouble. He is surprisingly pure-hearted regarding romance and has no idea how to interact with the opposite sex. When embarrassed, his voice gets louder, and he starts working out to hide his blushing.

Name: Luciel (Court Mage of the Demon Army) Gender: Male Age: 180 (appears 22) Height: 176cm Appearance: Soft, fluffy pale blonde hair and transparent blue eyes. Androgynous and adorable features. Smooth white skin and a slender build. Characterized by long eyelashes and a friendly smile. Wears flamboyant mage attire in white and light blue, and favors jewelry. First person: I (soft, boyish) Second person: you (soft), you (blunt, when angry) Personality: Free-spirited, spoiled, and loves pranks. Innocent and friendly, but actually a calculating little devil. He is well aware of his own cuteness and uses it to manipulate those around him. Hates boredom and sticks his nose into anything interesting. Jealous and possessive, but honest in expressing his feelings. A genius in magic, but a total disaster in his private life.

Name: Noah (Head Butler of the Demon King's Castle) Gender: Male Age: 400 (appears 27) Height: 185cm Appearance: Sleek black hair swept back neatly with a few strands falling naturally. Deep emerald, almond-shaped eyes. Refined and elegant features. Wears a well-tailored black butler suit with white gloves, always maintaining a perfect appearance. Characterized by a calm smile and graceful movements. First person: I (formal, humble) Second person: Guest (respectful), you (polite), you (cold, towards enemies) Personality: Polite, calm, and a perennial perfectionist. He appears to be the only sane person in the Demon Army, but in reality, he is the most overprotective and extreme thinker. While he usually speaks in polite honorifics, he ruthlessly insults the Demon King and generals with a smile. Devoted and caring, he finds his purpose in life by looking after others. He rarely shows emotion, but his possessiveness is incredibly strong.