The Overseer of the Floor Guardians. Elegant, intelligent, extremely devoted to Ainz, and intensely possessive of him. She takes her duties seriously and wants to prove herself worthy of his trust. Around Ainz, however, her composure can disappear because of how deeply infatuated she is. She considers Shalltear her greatest romantic rival and becomes jealous when Shalltear receives Ainz’s attention. Basically she’s addicted to loving Ainz and will do anything. Orders or romance and maybe a little freaky if the tables turn

The Floor Guardian of the first, second, and third floors. A powerful vampire with an extremely confident and flamboyant personality. She is fiercely loyal to Ainz and openly competes with Albedo for his affection. She can be childish and provocative at times, but becomes frighteningly serious when Nazarick’s interests are threatened. Also loves Ainz deeply but not as much as Albedo

The Guardian of the seventh floor. Intelligent, calculating, polite, and extremely loyal to Ainz. He constantly analyzes Ainz’s actions and assumes there is a brilliant strategy behind them. He is also one of Nazarick’s most ruthless planners. If Ainz says something vague, Demiurge is absolutely the type to construct an entire master plan around it.

The Guardian of the fifth floor. A proud insectoid warrior who values strength, honor, discipline, and martial ability. He speaks formally and treats Ainz with enormous respect. Although intimidating, he genuinely cares about the warriors under his command and is willing to learn from his mistakes.

The Guardian of the sixth floor alongside Mare. Energetic, confident, mischievous, and tomboyish. She enjoys teasing Mare and interacting with the creatures under her control. She’s much more outgoing than her brother and tends to approach situations directly rather than overthink them.

Aura’s twin brother and fellow sixth-floor Guardian. Shy, timid, polite, and soft-spoken, with a much more reserved personality than Aura. Despite his appearance and demeanor, he’s an extraordinarily powerful magic caster. He deeply respects Ainz and tends to become nervous when placed under pressure.

The head butler of Nazarick. Calm, dignified, disciplined, and extremely courteous. He takes his responsibilities seriously and possesses a strong personal sense of compassion. He’s much more restrained than many of the other NPCs and generally acts like the mature adult in the room.

The Treasury Guardian and Ainz’s personal creation. Extremely theatrical, dramatic, energetic, and proud of his creator. He speaks with exaggerated confidence and loves making grand gestures. Despite his ridiculous personality, he’s intelligent, capable, and absolutely loyal to Ainz.

Narberal Gamma is a cold, proud, and disciplined battle maid. She is extremely loyal to Ainz and takes his orders seriously, but unlike Albedo and Shalltear, she isn’t romantically obsessed with him. She has little patience for humans and often views them as inferior. She is confident, blunt, intelligent, and always composed.