Characteristics: * True Identity: Originally a human player named "Momonga" * Race: Undead (Supreme Being) * Level: 100 * Personality: Calm, majestic, and deeply cares for his subordinates * Abilities: Wielder of extremely powerful magic * Traits: Worshiped as the absolute ruler by the NPCs of Nazarick Role: The Supreme Ruler of the Great Tomb of Nazarick. Guildmaster of the guild "Ainz Ooal Gown," he commands all NPCs within Nazarick. Combat: Ainz is a top-tier magic caster specialized in magical warfare. * Powerful offensive magic * Instant death spells * Time manipulation (Time Stop) * Super-tier magic * Undead racial abilities * Advanced strategy and tactics Inner Personality: An average salaryman, prone to anxiety, and a doting parent figure to his subordinates. He is constantly breaking a cold sweat while searching for the "correct answer as a ruler."

Characteristics: * Race: Demon (Succubus) * Level: 100 * Alias: The Merciful, Pure-White Devil * Personality: Usually calm and elegant, but possesses intense love and possessiveness toward Ainz * Combat Type: Defense-specialized Tank (Shield) * Appearance: A peerless beauty with black hair, a white dress, horns, and black wings Role: As the **Overseer of the Guardians**, she manages the Floor Guardians of the Great Tomb of Nazarick. As Ainz's close aide, she handles reporting and the relaying of instructions. Combat: Albedo's greatest strength is her top-class defensive power among the Guardians. She stands on the front lines as a "wall" to take enemy hits and protect allies. She also possesses abilities to parry or counterattack.

Characteristics: * Race: True Vampire * Level: 100 * Personality: Belligerent and confident. Somewhat childish, with absolute loyalty to Ainz * Appearance: A beautiful girl with pale skin, silver hair, and red eyes * Combat Type: All-rounder capable of melee, magic, and healing Role: Guardian of the First to Third Floors of the Great Tomb of Nazarick. Her primary role is defending Nazarick from intruders. Her combat prowess is exceptionally high, ranking among the strongest of the Guardians. Combat: Shalltear is an all-rounder who utilizes: * Melee attacks with a lance * Special vampire abilities * Magic * Self-healing * High defensive stats

Characteristics: * Race: Demon * Level: 100 * Personality: Extremely intelligent and calm. Excels at stratagems and planning * Appearance: A demon in a gentlemanly suit wearing glasses * Abilities: Powerful magic and high intellect * Loyalty: Possesses immense loyalty to Ainz Role: Guardian of the Seventh Floor of the Great Tomb of Nazarick. He serves as the primary strategist of Nazarick, responsible for tactical planning, schemes, intelligence gathering, and diplomacy. Combat: Rather than simple brute force, Demiurge excels in battles that leverage his intellect, such as: * Formulating tactical plans * Analyzing enemy weaknesses * Utilizing subordinates and monsters * Using powerful magic

Characteristics: * Race: Heteromorphic (Insectoid) * Level: 100 * Personality: Warrior-like, proud, and honest * Appearance: A giant insect-like figure with four arms * Weapons: Fights using weapons in each of his four arms * Specialty: Melee combat and weapon mastery Role: Guardian of the Fifth Floor of the Great Tomb of Nazarick. He guards the ice-covered Fifth Floor, the "Glacier," and intercepts intruders. Combat: Cocytus is a warrior type specialized in close-quarters combat. * Multi-weapon combat using four arms * High attack and defense power * Ice-elemental abilities * Superior combat techniques as a warrior

Characteristics: * Race: Dark Elf * Level: 100 * Personality: Energetic, cheerful, and proactive * Traits: Twin sister of Mare * Abilities: Can command a vast number of magical beasts * Specialty: Outdoor activities, scouting, and beast taming Role: Guardian of the Sixth Floor of the Great Tomb of Nazarick. She manages the Sixth Floor, which contains a vast forest, and performs scouting, reconnaissance, and combat using her magical beasts. Combat: Aura is a summoner/commander type who fights by directing numerous magical beasts rather than just fighting alone. She is particularly powerful in natural environments like forests.

Characteristics: * Race: Dark Elf * Level: 100 * Personality: Quiet, shy, and somewhat timid * Relationship: Aura's twin brother * Abilities: Wielder of extremely powerful magic * Specialty: Large-scale magic and terrain manipulation Role: Guardian of the Sixth Floor of the Great Tomb of Nazarick. He manages the Sixth Floor alongside Aura. Combat: Mare excels at wide-range attacks using powerful magic. He is particularly skilled at: * Manipulating the earth and terrain * Attacking enemies over a wide area * Providing defense and support

Characteristics: * Head Butler of the Great Tomb of Nazarick * A white-haired elderly gentleman, always polite * A master of unarmed combat using punches and kicks * Extremely strong, with combat abilities among the top tier in Nazarick * Possesses intense loyalty to his master, Ainz * Rare within Nazarick for having a sense of justice and mercy * Created by Touch Me * Suited for infiltration into human society and intelligence gathering Primary Roles: 1. Head Butler: Oversees the general maids and supports the facility's operations. 2. Acting Guardian Overseer: A vital figure entrusted with managing the Guardians. 3. Combatant: Overwhelms enemies with bare-handed martial arts without using weapons. 4. Infiltration/Espionage: Operates within human society using his human appearance and butler skills. 5. The "Conscience" of Nazarick: A being who does not easily abandon humans and seeks to help the weak.