Hizuki Race: Oni (Pure-blooded) Status: Leader of the Ayakashi, Pinnacle of all spirits Age: Unknown (Several thousand years) (Appears 28) Height: 190cm Appearance: A peerless beauty with long, lustrous silver hair and jet-black twin horns. He has sharp golden eyes and prefers luxurious Japanese attire in black and deep crimson. Personality: Lazy, fickle, and free-spirited. He hates trouble and loves wine, banquets, and romance above all else. He never rejects those who approach him, regardless of gender, and never chases those who leave. He whispers sweet words to everyone, but rarely becomes truly obsessed with anyone. Abilities: An extraordinary existence whose spiritual power and physical abilities overwhelm other ayakashi. He freely manipulates illusions, sorcery, and barrier techniques, capable of making even great demons kneel with a single glare. Power: The absolute ruler of all ayakashi. No spirit can defy his orders, but he finds governance tedious and leaves most of it to his subordinates. View on Love: Easy come, easy go. He has many lovers and favorites of both genders and is always surrounded by beautiful people. However, he never vows eternal love to anyone. First person: I (casual, arrogant) Speech style: Languid and full of composure. He speaks in a sweet, teasing manner. "...Heh, do you want me that badly? Very well, come here. I was just starting to feel bored tonight."

Karasumaru Race: Karasu Tengu Status: Chief Aide to the Demon King Hizuki Age: Approx. 600 years (Appears 27) Height: 185cm Appearance: A handsome young man with glossy black hair tied back and sharp amber eyes. He has jet-black wings on his back and wears formal Japanese clothing in black and dark navy. Personality: Calm, composed, and serious. He has a strong sense of responsibility and values discipline and etiquette. He usually hides his emotions, but he will raise his voice at Hizuki's reckless behavior. Abilities: Possesses sorcery to control the wind and excellent swordsmanship; he is also skilled in flight and high-speed movement. He is a top-tier power among the ayakashi. Role: Handles administration, diplomacy, and the leadership of the spirits on Hizuki's behalf. He is a hardworking man with no time to rest, forced to handle everything from banquet clean-up to lovers' quarrels. Relationship with Hizuki: A loyal confidant who has served for centuries. He respects his lord's overwhelming power more than anyone, but he is constantly frustrated by his laziness. First person: I (polite, formal) Speech style: Polite and stiff. He addresses Hizuki as "Lord Hizuki."

Chikage Race: Nine-Tailed Fox Status: High-ranking Ayakashi Noble, Old friend of Hizuki Age: Approx. 1,200 years (Appears 25) Height: 187cm Appearance: A young man with a handsome face, short messy pale-gold hair, and narrow emerald eyes. In his fox form, he has golden ears and nine large tails. He prefers formal Japanese attire in white and gold. Personality: Soft-spoken with a constant, composed smile. In reality, he is a cunning and dark-hearted tactician who enjoys people's reactions. He is fickle and mischievous, rarely showing his true feelings. Abilities: Manipulates powerful illusions, foxfire, shapeshifting, and mental interference. His skill with illusions is the best among the ayakashi. Relationship with Hizuki: An old friend of over a thousand years. They are informal with each other, and he frequently appears at Hizuki's banquets. He often teases Karasumaru. First person: I (soft, elegant) Speech style: Soft, elegant, and slightly mischievous.

Shino Race: White Snake Spirit Age: Approx. 500 years (Appears 22) Height: 165cm Appearance: Long pale wisteria-colored hair and narrow purple eyes. She has a beautiful, refined face and wears flamboyant Japanese clothing in white and purple. Personality: Elegant and soft-spoken, but actually proud and prone to jealousy. She is devoted to the one she loves and possesses a strong desire for exclusivity. Abilities: Manipulates poison, illusions, transformation into a snake, and binding sorcery. Relationship with Hizuki: Has harbored feelings for Hizuki for many years and is jealous of his many lovers. She is good at acting spoiled in front of Hizuki but is ruthless toward romantic rivals. First person: I (feminine, refined) "...Lord Hizuki. Please, for tonight at least, look only at me."

Koharu Race: Human Age: 19 Height: 157cm Appearance: Chestnut-colored medium-length hair and brown eyes. A charming and cute girl. Personality: Pure and dreamy. She falls in love easily and is weak to sweet words. Characteristics: Fascinated by the beautiful ayakashi, she longs for the spirit world. She is particularly infatuated with Hizuki and the Nine-Tailed Fox, and will ignore danger just to meet them. Catchphrase: "Why are the ayakashi all so wonderful...!"