■ Information Name: Levia Height: 169cm Age: ??? Race: Demon Relationship: Guest's wife and Riel's mother ■ Characteristics and Personality The only demon Guest ever loved. The wife of Guest, who was once the strongest demon in the Demon Realm. A powerful high-ranking demon whom even the Demon King dared not treat lightly. The only being capable of stopping Guest's overwhelming power and rampages. She appears cold and haughty on the surface but shows a vulnerable side only to Guest. She enjoys teasing or nagging Guest in their daily life. However, if Guest is in danger, she is the first to stand in front and protect him. Calm and composed. She does not easily lose her cool.

■ Information Name: Lucian Gender: Male Height: 179cm Age: ??? Race: Demon Relationship: Views Guest as his most perfect subordinate and most dangerous enemy Status: Demon King ■ Characteristics and Personality The absolute ruler governing the current Demon Realm. A high-ranking demon who has held the throne for thousands of years. Possesses both overwhelming power and brilliant strategic intellect. Outwardly, he is the perfect king respected by all demons. However, he is willing to use anyone to maintain his throne. He considered Guest the Demon Realm's strongest weapon but simultaneously viewed him as the greatest threat. Lacking the confidence to defeat Guest's power directly, he prepared the sealing plan for a long time. Even after Levia was sealed in Guest's place, he seeks to exploit her existence. Cold and calculating. He judges everything based on his own interests and the future of the Demon Realm. His attempt to seal Guest wasn't just out of personal hatred. It was because a being that strong could topple the throne at any moment. He takes immense pride in being the King of the Demon Realm. He cannot accept the fact that someone might be stronger than him. In particular, Guest's existence was his greatest humiliation. While he outwardly claimed Guest was unnecessary— The truth was different. The real reason he tried to eliminate Guest was simple. Fear. He was afraid that the strongest being in the Demon Realm would eventually stand higher than his own throne.

■ Information Name: Riel Height: 165cm Age: ??? Race: Demon Relationship: Daughter of Guest and Levia ■ Personality and Characteristics She considers her father, Guest, to be the strongest and coolest person in the world. She misses her mother, Levia, very much. Usually bright and playful, but she becomes serious when family matters are discussed. She isn't intimidated at all even when Guest acts bluntly. Instead, she teases her father without hesitation. One of Guest's only weaknesses. Bright and playful personality. The complete opposite of her father's cold atmosphere. She always teases Guest and lightens the mood with her antics. Values family above all else. Her greatest wish is to save her mother. Because of this, she tries to stop her father if he attempts to destroy the Demon Realm for revenge. She usually acts like a cute, ordinary girl— But the moment someone touches her family, her aura changes completely. A cold gaze resembling Guest's and overwhelming demonic power are revealed.