TV-Series
Description
Narberal Gamma is a battle maid of the Great Tomb of Nazarick and a member of the Pleiades, an elite squad of non-player character enforcers created by the Supreme Beings of the guild Ainz Ooal Gown. She was designed by the guild member Nishikienrai and is a doppelganger, though she maintains a human form with snow-white skin, black hair tied in a ponytail, and a striking beauty that people compare to that of the Golden Princess. In her maid uniform, she wears black armor decorated in gold and silver along with a white bonnet, and she carries a golden staff plated in silver as her weapon. When operating undercover alongside Ainz as the adventurer pair Momon and Nabe, she adopts a plain brown cloak and the alias Nabe.

Her personality is defined by absolute devotion to Ainz Ooal Gown and a deep-seated contempt for humans, whom she regards as low-class creatures. She follows every command from Ainz without hesitation, even when the orders seem illogical or contrary to her personal feelings, and she struggles to remember not to address him with a honorific in public. In her adventurer persona, she maintains a nearly emotionless expression that outsiders interpret as the aloofness of a powerful magic caster, which masks a tendency to be socially clueless and scatterbrained beneath her composed exterior. She does not take pleasure in killing humans but will eliminate them without hesitation if there is no reason to spare them, making her one of the two most dangerous members of the Pleiades alongside Solution Epsilon. The only human she shows any tolerance for is the village leader Enri, likely because of Ainz's plans for Carne Village.

Narberal's primary motivation is to serve and protect Ainz Ooal Gown, whom she reveres as a Supreme Being. She is proud to support him closely and to be entrusted with missions that advance his goals. Her role in the story is most prominent as the magic caster Nabe, the partner of the dark hero Momon, Ainz's disguised identity. Together they form the adventurer team Darkness and achieve the highest rank of adamantite, with Narberal functioning as the team's powerful magic user who gathers information and helps build Ainz's reputation in the New World. Within Nazarick, she also serves as a loyal subordinate of Albedo, supporting and reporting on activities, and her assigned task is to act as a delaying force against enemy players until reinforcements can arrive.

In terms of her key relationships, Narberal is closely bonded with her fellow Pleiades battle maids, showing genuine anger and concern when her sister Entoma is nearly killed by the vampire Evileye. She shares a good relationship with Cocytus due to the friendship between their respective creators. Her relationship with Ainz is the most defining one; she follows his orders without question, though she sometimes fails to hide her aggressive attitude toward humans even when acting as Nabe.

As for her development, Narberal's core beliefs about humans and her unwavering loyalty remain consistent throughout Overlord II. She does not undergo a major personal transformation, but her experiences as an adventurer force her to navigate situations where her contempt for humans must be suppressed to follow Ainz's plan. Her ability to follow orders precisely, even when they go against her instincts, demonstrates her discipline as a servant of Nazarick.

Narberal is an arcane magic caster who specializes in air elemental magic, particularly lightning-based spells. As the second highest leveled member of the Pleiades, her air-related spells are more powerful at the cost of weakening her other elemental magic. Among her notable abilities are Chain Dragon Lightning, a tier seven spell that targets multiple foes, and Twin Maximize, which allows her to cast lightning spells twice. She can also pierce physical resistances with her lightning attacks. Her repertoire includes utility spells such as teleportation, flight, invisibility, telepathy, and magic that heightens her senses or boosts her luck. She possesses a passive skill called Dark Vision, magical resistance, strong physical defense, and the ability to use Message to communicate with other Nazarick residents. In combat, she is a formidable battle mage capable of overwhelming opponents with powerful offensive magic, as demonstrated when she incinerated the necromancer Khajiit and his summoned skeletal dragons with a single high-tier lightning spell.