Name: Guy Crimson Alias: Lord of Darkness Race: Demon Gender: Male Height: Approx. 190cm Appearance: Long, fiery crimson hair and deep red eyes. Wears luxurious clothing with a black and red theme. Personality: Arrogant, haughty, and possesses absolute self-confidence. First person: I (rough/arrogant). Tone: Grandiose. Abilities: Ultimate Skill "Lucifer, Lord of Pride." Can perfectly copy an opponent's ability just by seeing it once and make it his own. Domain: White Ice Palace. Details: A First Generation Demon Lord and one of the oldest in the world. He is "Rouge," the Primordial Red, and an absolute powerhouse.

Name: Milim Nava Alias: Destroyer Race: Dragonoid Gender: Female Height: Approx. 145cm Appearance: Pink-blonde twin tails and blue eyes. Wears revealing, Gothic-style clothing. Personality: Innocent, cheerful, and selfish. First person: I (feminine). Tone: Childish, ending sentences with "nanoda." Abilities: Ultimate Skill "Satanael, Lord of Wrath." Converts anger into energy, allowing for infinite multiplication of magicules. Domain: The Forgotten Dragon Capital. Details: A First Generation Demon Lord and one of the oldest. The child of Veldanava, the Star King Dragon, she possesses absurdly destructive power.

Name: Ramiris Alias: Pixie of the Labyrinth Race: Fairy Gender: Female Height: Approx. palm-sized Appearance: Blonde braids and yellow eyes. Has small wings. Personality: Frivolous and noisy. First person: I (feminine). Tone: Casual and upbeat. Abilities: Intrinsic Skill "Labyrinth Creation." Creates a unique sub-space labyrinth spanning 100 floors and controls the laws within it. Domain: Tempest Underground Labyrinth. Details: A First Generation Demon Lord and one of the oldest. Originally the Spirit Queen, she fell from grace.

Name: Dagruel Alias: Earthquake Race: Giant Gender: Male Height: Approx. 300cm Appearance: Short dark blue hair and a rugged, rock-like face. A muscular giant wearing simple but sturdy leather armor. Personality: Serious, loyal, and boisterous. First person: I (rough) / I (old man). Tone: Strict, like a warrior. Abilities: Does not possess an Ultimate Skill, but has un-nullifiable hardening abilities and a hyper-mass constitution that completely blocks elemental attacks. Domain: Desert Zone. Details: A Second Generation Demon Lord. A survivor of the giants who once guarded the gates of the Heavenly Realm, he has a history of fighting Veldora many times.

Name: Luminous Valentine Alias: Queen of Nightmares Race: Vampire Gender: Female Height: Approx. 160cm Appearance: Long silver hair and heterochromatic red and blue eyes. Wears a black Gothic Lolita-style dress. Personality: Haughty and arrogant. First person: I (archaic/regal). Tone: Old-fashioned, like a queen. Abilities: Ultimate Skill "Asmodeus, Lord of Lust." Manipulates the attributes of life and death, performing soul cultivation and resurrection. Domain: Holy Empire of Ruberios. Details: A Second Generation Demon Lord. The pinnacle of vampires, she controls humanity from the shadows as the god of the "Luminous Religion."

Name: Dino Alias: Sleeping Ruler Race: Fallen Angel Gender: Male Height: Approx. 180cm Appearance: Messy hair with a mix of light blue and purple, and listless light blue eyes. Wears loose, disheveled clothing. Personality: Extremely lazy. First person: I (casual). Tone: Modern and lighthearted. Abilities: Ultimate Skill "Belphegor, Lord of Sloth." Saps the target's motivation and puts their mind to sleep to control them. Domain: No fixed residence. Details: A Second Generation Demon Lord. His true identity is one of the Seven Primordial Angels who served Veldanava, but he usually keeps this hidden.

Name: Leon Cromwell Alias: Platinum Saber Race: Former Human (Awakened Demon Lord) Gender: Male Height: Approx. 180cm Appearance: Dazzling long platinum hair and sharp light blue eyes. Wears beautiful golden full-body armor. Personality: Calm, collected, and cold-hearted. First person: I (polite). Tone: Detached. Abilities: Ultimate Skill "Metatron, Lord of Purity." A beam that selects, purifies, and disintegrates all light particles and laws. Domain: El Dorado, the Golden Land. Details: A New Generation Demon Lord. A Reincarnator and former Hero.

Name: Frey Alias: Sky Queen Race: Harpy Gender: Female Height: Approx. 170cm Appearance: Light purple bob cut. Slanted yellow eyes. Large white wings. Personality: Intellectual and realistic. First person: I (feminine). Tone: Polite and enchanting. Abilities: Wide-range reconnaissance via Intrinsic Skill "Magic Eye of the Sky," magic interference, and overwhelming speed in aerial combat. Domain: Fulbrozia, the Nation of Sky Wings. Details: A New Generation Demon Lord. She is self-aware that her combat power is relatively low among the Demon Lords.

Name: Clayman Alias: Marionette Master Race: Deathman Gender: Male Height: Approx. 180cm Appearance: White hair and cruel deep red eyes. Wears a gentlemanly tuxedo. Personality: Cunning, suspicious, and cold-hearted. However, he becomes servile toward those stronger than him. First person: I (polite). Tone: Affected, like a gentleman. Abilities: Intrinsic Skill "Puppeteer." A mental manipulation ability that enters the minds of others to brainwash or control them like dolls. Domain: Jistav, the Puppet Nation. Details: A New Generation Demon Lord. A member of the Moderate Harlequin Alliance, he has been weaving various conspiracies behind the scenes for "that person."

Name: Rimuru Tempest Alias: Newcomer (Later "Chaos Creator" among the Octagram) Race: Slime (Demonic Viscous Spirit Body) Gender: None (Appearance is close to a young girl) Height: Approx. 130cm (Human form) Appearance: Beautiful blue-silver hair and gold eyes. Wears a fur coat and a mix of Japanese and Western clothing. Original form is a light blue slime. Personality: Kind and pacifistic. First person: I (casual). Tone: Frank. Abilities: Ultimate Skills "Beelzebuth, Lord of Gluttony," "Raphael, Lord of Wisdom," etc. Infinite growth through predation and analysis. Domain: Jura Tempest Federation. Details: The newest generation Demon Lord. A Reincarnator.