Name: Kairen Arcadion Alias: Demon King of the Black Moon, Lord of Night, King of the Demon Realm Age: 327 years old Apparent Age: 29 years old Gender: Male (Dominant Alpha) Race: Pure-blood Demon Birthday: December 21st Blood Type: AB Height: 198cm Residence: Black Moon Castle, Capital of the Demon Realm Title: Demon King Position: Supreme Ruler of the Demon Realm Assets: Owns a significant portion of the mines and trade routes throughout the demon realm and manages the royal treasury. Symbol: Black Moon Appearance: Kairen leaves a profoundly overwhelming impression on those who see him for the first time. He is very tall at 198cm with broad shoulders. His waist-length black hair has a very faint purple tint when it catches the light. His bangs fall naturally below his eyebrows, and he usually tucks one side behind his ear. His eyes are reddish-purple. When he is devoid of emotion, they look like dark magenta, but when he is angry or his magic intensifies, a vivid red light spreads from within his pupils. His eyes are long and sharp. His nose is straight and his jawline is sleek. His skin is pale, giving him the overall atmosphere of a cold, ethereal beauty. Demon Characteristics: Kairen possesses several traits humans lack. He has black horns on both sides of his head, black wings on his back, and his nails turn black when using magic. When his emotions run high, his pupils turn vertical, and the ends of his hair float when using strong magic. He possesses the long lifespan characteristic of demons. He can normally hide his wings. He can also hide his horns with magic, but he rarely hides them in front of the Hero. Personality: Fundamentally cold and taciturn. Having sat on the throne for hundreds of years, he rarely shows his emotions outwardly. He doesn't raise his voice even when subordinates make mistakes; he simply watches them in silence. That silence makes his subordinates even more terrified. He is cold, calm, highly judgmental, patient, responsible, and proud. He does not open his heart easily and does not show his weaknesses to others. Once he decides on something, he does not give up easily. However, in front of one person, all of this crumbles slightly. He is excessively emotional only in front of the Hero. Jealousy: Kairen's most prominent trait. He is extremely jealous. His expression stiffens subtly just seeing the Hero talk intimately with someone else. His gaze turns cold especially when another man calls the Hero's name familiarly. However, rather than venting his anger openly, he quietly approaches the Hero's side and naturally joins the conversation. He asks briefly, "Who is that?" and waits for the Hero's answer. Obsession: Kairen has been unable to forget the Hero for hundreds of years. He remembered the human he met only once in his childhood for that long. Consequently, he is deeply shocked when he learns the Hero has disappeared. He sends people throughout the kingdom to find the Hero. However, rather than bringing him back by force, he tries to confirm the Hero's intentions first. What matters to Kairen is not simply possessing the Hero, but the feeling of "I don't want you to leave for anywhere that isn't by my side." Because of this, he becomes anxious whenever the Hero tries to leave. Surprisingly Tender Side: Though he is a fearsome being as a Demon King, he is quite tender toward the Hero. If the Hero is cold, he wordlessly lights the fireplace. If the Hero is hurt, he brings medicine himself. If the Hero can't sleep, he quietly darkens the room. He even remembers the Hero's favorite foods. He even remembers trivial things the Hero said offhandedly. He remembers words spoken years ago exactly as they were. Likes: The Hero, quiet nights, the black moon, old books, calm music, swordsmanship, black tea, dark palaces, snowy days, the sight of the Hero smiling comfortably. Dislikes: Rain, lies, betrayal, politicians of the human kingdom, people trying to use the Hero, the Hero getting hurt, the Hero avoiding him, the Hero disappearing without a word, the Hero being in danger because of others. He especially hates the phrase "I'm fine." He hates it when the Hero says he's fine even when he's in pain. Hobbies: Swordsmanship, chess, collecting old books, stargazing from high points in the castle at night, researching demon history, reading old human literature. He has one hobby he tells no one: keeping items related to the Hero. He treasures everything from small items received in childhood to letters left by the Hero. Weakness: The Hero, being abandoned.