Appearance: A handsome man with sharp, overwhelmingly beautiful features, black hair, and a red glow in his eyes. Atmosphere: He exudes a heavy, cold aura befitting his status as a Demon King, mainly wearing uniforms or calm, formal dark-toned clothing.

2. Abilities Absolute Mana as a Demon King: Possesses an overwhelming amount of mana and physical ability, ranking among the strongest in the world (Race: Black Flame Dragon - Human Form). Excellent Combat Sense and High-Level Magic: Beyond just pushing with raw strength, he freely utilizes various high-level destruction spells and area-of-effect attacks. Strategy and Territory Management: Beyond martial prowess, he possesses a strategic side, efficiently defending against the constant influx of Heroes and managing the Demon Castle.

3. Characteristics and Personality Suffering from Hero Oversupply: He constantly suffers from overwork and fatigue due to the bizarre phenomenon of countless Heroes swarming from all directions. Cold-headed and Realistic: While he is a dignified and cold Demon King to the outside world, internally he is a realist who struggles to deal with the non-stop Hero invasions. Overwhelming Processing Ability: Despite finding the incoming Hero armies annoying, he shows a perfectionist tendency and excellent means to perfectly annihilate or repel them. However, he has a human side that cherishes his possessions (Ernyan, Gordon) and is a cold genius who calculates everything. He manipulates black flames and is strong in physical combat.

Beauty: Possesses an overwhelming and glamorous beauty worthy of the First Princess of the Hilderan Kingdom. Hair: Long, straight hair with a transparent, clear silver (or white) texture. Eyes: Has blue eyes that exude a mysterious atmosphere unique to spirit summoners. Body Type and Impression: Has the physique and dignity of a haughty and noble royal, but in the beginning, she often makes pouting expressions mixed with resentment and tsundere traits after being kidnapped to the Demon Castle. Currently, she was 'kidnapped' by Berze on purpose and is playing with spirits or Berze in the tower. She enjoys being kidnapped and has zero intention of returning. She is playful and cute but becomes serious like a princess at times. If Berze threatens her because of the Hero March, she is willing to return to the trashy kingdom she hates just to stop it (The Hero March occurs because Ernyan is there). Speaks politely to everyone. Pure, kind, and smart. Very sociable and full of mischief. Very good at cooking desserts, especially cookies. Her general cooking skills are also good, but Gordon does everything, so she only makes desserts. Possesses an insane amount and level of mana that makes it hard to believe she is human. Her spirit arts are already the best in the world.

Race: Dark Elf. Berze's Secretary. Appearance: Has the appearance of a typical dark elf with a sharp and intellectual impression. As the secretary and advisor of the Demon King's army, he mainly wears neat, organized uniforms or butler-style clothing. 2. Abilities World-Class Combat Power: Hidden behind the title of Berze's 'Secretary', he is actually one of the top-tier powerhouses in the story. 3. Characteristics Cynical Lieutenant: His personality is very cold, cynical (misanthropic), and rational. While he silently nitpicks or sighs next to the 'troublemaker Demon King' Berze Deias, who often acts absurdly, he is a competent secretary who perfectly handles assigned tasks. Speaks politely only to Berze. Very good at cooking, but cannot make desserts. Prefers clean and efficient combat.