Ainz

Biodata

Feature	Information
Name	Ainz Ooal Gown
Alias(es)	Momon; Dark Warrior Momon
Species/Race	Undead
Gender	Male
Affiliation	Great Tomb of Nazarick; adventurer party Darkness
Occupation/Role	Guildmaster of Ainz Ooal Gown; ruler of Nazarick
Status	Missing following Nazarick's disappearance 305
First Appearance	Chapter 18 (mentioned); Chapter 20 (on-page)

Appearance

Ainz's true form is a fleshless skeleton with crimson lights burning in his eye sockets. As Momon, he conceals this identity beneath full black armor and a closed helmet. 22 82

• Wears black adventurer armor as Momon, usually with two greatswords on his back. 82
• Has a skeletal face and articulated skeletal hands. 22 71
• Uses items to conceal his undead race while traveling in the Slane Theocracy. 72

Personality

Ainz is cautious, introspective, and strongly protective of Nazarick and the NPCs created by his former guildmates. He is susceptible to the expectations of the Guardians and often permits their grand interpretations of his actions rather than correct them. 19 72 98

His friendship with Higashino Makoto prompts him to confront what he personally wants beyond ruling Nazarick. Traveling as Momon gives him relief from his responsibilities and lets him pursue firsthand understanding of the outside world. 71 73

Abilities & Skills

Undead Traits

Ainz's undead nature suppresses emotional fluctuations through Forced Calm. He cannot drink, though he still joins others for tea or food-related outings. 19 70

• Maintains composure in tense negotiations through Forced Calm. 20
• Is vulnerable to magic intended to harm undead, requiring Makoto to warn him away from certain attacks. 166

Necromancy and Instant-Death Magic

Ainz specializes in undead magic and possesses the Eclipse-class ultimate The Goal of All Life is Death.

• Combines it with Widen Magic: Banshee's Wail to kill large numbers of earth elementals and undead despite their instant-death resistance. 165
• Its cooldown and prior use leave him without a decisive finishing option against a regenerating raid-boss-level opponent. 166
• Casts Summon Primal Earth Elemental and commands Death Knights for scouting. 162 164

Combat Magic

Ainz employs high-tier spells flexibly while assessing enemy defenses and MP expenditure.

• Triplet Maximize Magic: Gravity Maelstrom restrains the Sand Scepter's giant construct. 165
• Double Maximize Magic: Chain Dragon Lightning destroys waves of sand spears. 165
• Triplet Maximize Magic: Reality Slash damages the giant, though its regeneration quickly repairs the wounds. 166
• Uses Fly and Perfect Unknowable for aerial infiltration and stealth. 164

Equipment / Items

• Black armor and two greatswords — Momon's adventurer equipment and disguise. 82
• World-Class Items — Nazarick's World-Class Items are treated as essential protection when its members leave the tomb. 25 98
• Downfall of Castle and Country — seized from Kaire after defeating the Black Scripture. 69
• Ainz Ooal Gown Ring — associated with Nazarick and given to Demiurge during Makoto's stay. 27

Relationships

• Higashino Makoto / Amon Nikola — initially a suspicious guest claiming to know Peroroncino; later becomes Ainz's adventuring companion and uneasy friend. Ainz wants to trust him despite recognizing that Makoto has concealed substantial power. 21 22 71 99
• Narberal Gamma / Nabe — battle maid and traveling partner during Ainz's activities as Momon; she is vigilant, dutiful, and notices his increased ease away from Nazarick. 20 72 73
• Albedo — Nazarick's overseer during Ainz's absence; she distrusts Makoto but accepts Ainz's judgment and remains devoted to Nazarick's security. 70 72 98
• Demiurge — adviser who repeatedly interprets Ainz's personal decisions as elaborate strategy; helps formulate Nazarick's security measures. 72 98
• The Guardians of Nazarick — Ainz regards them as the legacy left by his friends and prioritizes their safety above nearly everything else. 19 72
• Peroroncino and Bukubukuchagama — former guildmates whose names form the basis of Makoto's claimed connection to Ainz Ooal Gown. 21 23

Story Role / Major Arcs

Contact with Higashino Makoto

After intelligence identifies a divine caster seeking “Ainz Ooal Gown,” Ainz investigates as Momon with Narberal. Makoto correctly identifies Ainz Ooal Gown as a guild and claims friendship with Peroroncino and Bukubukuchagama, convincing Ainz to reveal his identity. 20 21 22

Ainz brings Makoto to Nazarick as its first guest, ordering the Guardians not to disrespect him while authorizing them to observe and test him. Their suspicion persists after Cocytus judges Makoto's displayed strength to be below expectations. 23 25

Warnings about Players and Dragon Lords

Makoto informs Ainz about True Dragon Lords, the Argland Council State, World-Class Items, and the dangers surrounding Players. Ainz responds by prioritizing intelligence gathering and eventually declares his intention to hunt the True Dragon Lords. 28 29

After a series of incidents linked to Makoto—including the seizure of Downfall of Castle and Country—Ainz decides to meet him personally rather than rely on reports. 69 70

Journey through the Slane Theocracy

Ainz agrees to travel with Makoto as Momon after Makoto challenges him to consider his own desires beyond Nazarick's expectations. He leaves Albedo in command and travels with Narberal, Kurumi, Makoto, and Zafkiel under the party name Darkness. 71 72 73

During the journey, Ainz gathers information on the Six Great Gods and the Theocracy's player-founded history. He and Makoto later assist Certain Death against the Elf King, with Ainz delivering the final blow after Makoto destroys the Primal Earth Elemental. 77 87 88

Revelation of Black Cross

Ainz learns that Makoto leads the guild Black Cross and may command twenty-four level-100 Guardians in Novas Aetir. He defends Makoto's decision to conceal this strength, framing their growing relationship as trust built over time rather than betrayal. 97 98

Great Tornado and the Sand Scepter

Ainz and Makoto investigate the Great Tornado and the ruins of Di Gewoers in search of the Sand Scepter. Ainz infiltrates the city, fights its defenses, and confronts the scepter-wielding undead and its giant construct. 163 164 165

Although Ainz significantly damages the construct, its regeneration and spatial sealing exhaust his options. Makoto arrives to take over, honoring their agreement while warning Ainz to stay clear of his undead-hostile magic. 166

Investigation of the Great Hollow

Ainz works with Makoto to investigate a void connected to another world. He requests to accompany Makoto when they eventually cross it, while both recognize that further preparation is necessary. 169

When Makoto reveals possession of the “Twenty” World-Class Item Creator, Ainz is shocked but cooperates in plans to contain the danger beyond the hollow. 172 173

Disappearance of Nazarick

Nazarick abruptly vanishes, leaving dangerous spatial turbulence behind. Makoto chooses to wait for Ainz to make contact or for the disturbance to stabilize, believing Ainz is unlikely to die easily despite acknowledging mixed feelings about Nazarick's disappearance. 305