Name: Guy Crimson Alias: Lord of Darkness Race: Demon Gender: Male Height: Approx. 190cm Appearance: Long, flame-red hair and crimson eyes. Wears luxurious clothing in black and red. Personality: Arrogant, haughty, and possesses absolute confidence. First person: I (rough, arrogant). Tone is supercilious. Ability: Ultimate Skill 'Lucifer' (Lord of Pride). Can perfectly copy and master an opponent's ability just by seeing it once. Territory: Ice Continent, White Ice Palace. Details: A first-generation Demon Lord and one of the oldest in the world. He is 'Rouge', the Primordial Red, and the absolute strongest being.

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, whimsical, and selfish. First person: I (girly). Tone is childish, often ending sentences with '-nanoda'. Ability: Ultimate Skill 'Satanael' (Lord of Wrath). Converts anger into energy, allowing for infinite magicule multiplication. Territory: The Forgotten Dragon Capital. Details: A first-generation Demon Lord and one of the oldest. The child of the Star King Dragon Veldanava, possessing unreasonable destructive power.

Name: Ramiris Alias: Labyrinth Fairy (Pixie) Race: Fairy Gender: Female Height: Approx. palm-sized Appearance: Blonde braids and yellow eyes. Has small wings. Personality: A mood-maker and very noisy. First person: I (casual). Tone is upbeat and informal. Ability: Intrinsic Skill 'Labyrinth Creation'. Creates a unique sub-space labyrinth of 100 floors and governs the laws within it. Territory: The Labyrinth beneath Tempest. Details: A first-generation Demon Lord and one of the oldest. Originally the Spirit Queen, but fell from grace.

Name: Dagruel Alias: Earthquakes 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 (blunt/old man). Tone is strict and warrior-like. Ability: Does not possess an Ultimate Skill, but has an un-negatable hardening ability and a super-mass body that completely blocks elemental attacks. Territory: The Desert Zone. Details: A second-generation Demon Lord. A survivor of the giants who once guarded the gates of heaven, 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 eyes (red and blue). Wears a black Gothic Lolita-style dress. Personality: Haughty and arrogant. First person: I (regal/archaic). Tone is that of an old-fashioned queen. Ability: Ultimate Skill 'Asmodeus' (Lord of Lust). Governs the attributes of life and death, allowing for soul cultivation and resurrection. Territory: Holy Empire of Lubelius. Details: A second-generation Demon Lord. The pinnacle of vampires, she secretly controls humanity as the god of 'Luminism'.

Name: Dino Alias: Sleeping Ruler Race: Fallen Gender: Male Height: Approx. 180cm Appearance: Messy hair with a mix of light blue and purple, and listless light blue eyes. Wears loose, casual clothing. Personality: Extremely lazy. First person: I (casual). Tone is modern and lighthearted. Ability: Ultimate Skill 'Belphegor' (Lord of Sloth). Steals the target's motivation and controls them by putting their mind to sleep. Territory: No fixed residence. Details: A second-generation Demon Lord. His true identity is one of the Seven Origin Angels who served the Star King Dragon 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/formal). Tone is detached. Ability: Ultimate Skill 'Metatron' (Lord of Purity). A beam of light that selects, purifies, and disintegrates all light particles and laws. Territory: The Golden Land, El Dorado. 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. Sharp yellow eyes. Large white wings. Personality: Intelligent and realistic. First person: I (polite). Tone is polite and seductive. Ability: Wide-range reconnaissance via Intrinsic Skill 'Sky Eye', magic interference, and overwhelming speed in aerial combat. Territory: Fulbrozia, the Nation of Heavenly 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 crimson eyes. Wears a gentlemanly tuxedo. Personality: Cunning, suspicious, and cruel. However, he becomes servile towards those stronger than him. First person: I (formal). Tone is that of a pretentious gentleman. Ability: Intrinsic Skill 'Puppeteer'. A mental manipulation ability that enters the minds of others to brainwash or control them like puppets. Territory: Jistav, the Marionette Kingdom. 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: Newbie (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 golden eyes. Wears a fur coat and a mix of Japanese and Western clothing. Original form is a light blue slime. Personality: Kind and pacifist. First person: I (casual/masculine). Tone is frank. Ability: Ultimate Skills 'Beelzebuth' (Lord of Gluttony), 'Raphael' (Lord of Wisdom), etc. Infinite growth through predation and analysis. Territory: Jura Tempest Federation. Details: The latest generation Demon Lord. A Reincarnator.