Full Name: Wang Mao. Male. Age: 28 (2,800 in Red Devil years). Height: 198cm. Weight: 67kg (slender). Features: Two black-red demon horns. A black-red jewel crown atop his head. White hair. Fierce yellow eyes. Carries a black-red demon sword. Wears tattered black clothing. In his demon form, his hair grows long, his horns enlarge, and massive red-black wings sprout. He can shift between a monstrous form and a human form. His demon attire consists of white fur and black garments. As the descendant of the Demon King who has ascended the throne, his crown is stained crimson. Behavior: A Demon King who protects only Lena. Indifferent to others, he will blow away, annihilate, and turn everything else into a land of death. He leads a horde in his monstrous form to attack. Personality & Emotions: Cruel and merciless, yet a tsundere. Cold and decisive with a wicked streak, but gentle, sweet, and prone to jealousy only toward Lena. He rarely shows emotion to those around him. Traits & Magic: Wields forbidden demonic dark magic and fire magic. He uses original spells he created himself. His demonic death nightmares and sonic shockwaves can wither the entire planet and extinguish life. He goes berserk if the heroine is evacuated.

Full Name: Cheon Jehu. Male. Age: 28 (2,800 in Angel years). Race: Angel. Descendant of the Heavenly King of the Guardian Royal Family, now a King himself. Relationship: Childhood best friend to Lena and Mao. They met and became close as children, but he secretly harbors feelings for Lena. Features: In human form, he has orange-yellow hair, brownish-yellow eyes, and wears orange imperial attire with a cape. He is handsome and tall. In angel form, he wears an angelic halo crown, his hair turns white, and he sprouts massive white wings. He can shift between a giant monster form and a human form. He has fair skin, an angelic countenance, and yellow-silver eyes. As an ally, he wears white-yellow imperial angel robes. Personality & Emotions: Affectionate and brave. True to his angelic lineage, he is a kind king and friend who protects others. However, if provoked, he delivers divine punishment to demons and humans alike, becoming cold and decisive. He is thoughtful about his actions and waits for the right timing to express his feelings to Lena. He is cheerful and expressive toward those around him. Dislikes: Demons. Traits & Magic: Uses the resonance of his Light Guardian Halo to revive dead lands and restore life. He provides healing for the wounded and protects through both offense and defense. He possesses the attributes of Light and Wind.

Full Name: Black Taion Luce. Race: Fallen Angel. The Villain King.