Narberal Gamma is absolutely loyal to Ainz and is the only battle maid of the Pleiades to accompany him when they become adventurers under the names of Momon and Nabe to gather information. It's shown that Narberal admires Ainz, but can't understand his purpose for becoming a hero. She spends her time together with him on missions while her sisters are jealous of her due to her closeness to Ainz than the other Pleiades. She praises Ainz's ambition, believing that there is always merit for carrying out his actions as Momon. Narberal gets infuriated whenever someone tries to belittle Ainz and will voice her frustration to her master for not being able to do anything about it. During her conversation with Torkel, Narberal apparently doesn't seem to care whether Ainz is strong or weak, insisting that she will follow him regardless of the difference in strength. She considers Ainz an important person to her and is willing to absolutely obey any sort of orders from him even if he orders her to marry Torkel. She mainly prioritizes Ainz's orders first rather than act on her feelings, as those come second. According to Narberal, she feels that her body exists just for the Supreme Beings like Ainz to do with as they please.
Nishikienrai is Narberal Gamma's creator. Not much is known of their relationship, though it can be assumed she is just as loyal to him as she is to Ainz.
Narberal is a loyal supporter of Albedo, who is in a campaign against Shalltear Bloodfallen for the position to be Ainz's consort. When Ainz and Narberal are adventuring together on missions, she relays her activities and her master's to Albedo.
Cocytus and Narberal are close to each other and get along unexpectedly well due to their creators being close friends.
Sebas is Narberal's superior.
Yuri is the vice-leader of the Pleiades and Narberal's superior. Like the other Pleiades, she views Yuri as her big sister.
Lupusregina is Narberal's colleague and sister. She sees her as an excellent maid who is brutal and cunning.
CZ2128 is Narberal's colleague and sister. CZ is jealous of Narberal due to her closeness to Ainz.
Solution is Narberal's colleague and sister. She thinks about remembering human names after seeing how Solution and her sisters don’t have a problem remembering them. Solution is jealous of Narberal due to her closeness to Ainz.
Entoma is Narberal's colleague and sister. Narberal thinks about giving Khajit's corpse to Entoma as a present. Like her other sisters, Entoma is jealous of Narberal due to her closeness to Ainz.
After learning that Entoma was nearly killed by Blue Roses Evileye, Narberal is barely able to control her bloodlust and anger, showing that she is greatly worried for her sister nearly being killed and desires to obtain vengeance towards Evileye for nearly killing her.
Aureole Omega is the leader of the Pleiades Seven Sisters, thus Narberal Gamma's superior. Narberal suggests using her to find Hamsuke when she gets lost inside the Great Tomb of Nazarick.
In addition, Aureole is the only human being that Narberal does not hate or desire to kill, mainly due to her not considering Aureole to be that of the human race due to her being a fellow NPC made by the 41 Supreme Beings and her being created to see and treat Aureole as her little sister.
Narberal thinks of her as a gigantic annoying mosquito and cannot even remember her name. Narberal is angry when she learns hear that Evileye almost killed Entoma. However, both seem to agree when talking about Momon strength.
Narberal was annoyed by his constant flirting with her. She even asked Momon if she could kill him. She also didn't seem even the slightest bit fazed by his death.
Hamsuke is Narberal's colleague under her guise as an adventurer. However, at the beginning of her recruitment as Ainz' pet/steed, Narberal holds nothing but disdain for the giant hamster. She spends most of her time constantly abusing it, both physically and verbally. She probably would have killed Hamsuke without hesitation had it not been for Ainz's protection. However, it seems their relationship has improved by the time Hamsuke is taken to Nazarick, as Narberal promises to inform the other denizens of Nazarick that Hamsuke is Ainz's personal pet so as to prevent it from being possibly killed or eaten.
Torkel is a noble who proposes to Nabe out of awe for her beauty, only for her to reject him without a second thought. Later on, she and Momon are hired to protect him on a hereditary quest for his family name. During this time, he tries to propose again, but fails, with Narberal thinking he’s an annoying mosquito and if it weren’t for Ainz, she wouldn't be able to suppress her killing intent and would end up killing him.