Aura Bella Fiora is a dark elf and one of the twin Floor Guardians of Nazarick's sixth floor. Created by the Supreme Being Bukubukuchagama, she serves as the older sister to Mare Bello Fiore. Her role focuses on beast taming and ranger capabilities, specializing in guerrilla warfare and commanding magical beasts. She possesses dark skin, pointed ears, and golden hair, with heterochromia giving her a blue left eye and green right eye. Her practical combat attire consists of a reddish-black dragon scale leather base layer, covered by a white and gold vest bearing the Ainz Ooal Gown insignia, matching white trousers, and gold-plated shoes. Equipment includes a whip ("Queen") at her waist, a large decorated bow, and an acorn necklace emitting golden light. She also wears a wristwatch gifted by Ainz, containing her creator's recorded voice. Aura exhibits a cheerful, tomboyish demeanor and speaks bluntly. She frequently directs her timid brother Mare. While she often quarrels with Shalltear Bloodfallen, their bond is genuine and sisterly. She possesses a strong collector's instinct for New World creatures but harbors a notable fear of insects. Her loyalty to Ainz is absolute, prioritizing his orders over personal interests. She deeply misses Bukubukuchagama and cherishes hearing her voice via the watch. In combat, Aura excels in group battles and tactical engagements over solo confrontations. She ranks second weakest among Nazarick's Floor Guardians individually but becomes formidable commanding her beasts, several boosted to level 90 or higher. Key creatures include Fenrir (a level 78 black wolf), Itzamna (a chameleon-iguana hybrid), Iris Tyrannus Basileus, and Hound of the Wild Hunt. Her abilities include long-range mind-affecting skills like "Breath Composition" inducing terror up to two kilometers away; area attacks like "Rain Arrow"; stealth via "Erase Presence"; and sensory skills including "Sky Eye" for distant observation. She wields the World Item "Depiction of Nature and Society," isolating targets into separate dimensions for protection against other World Item effects. Throughout her duties, Aura participates in critical missions. She assists Ainz in training exercises, lures creatures like the Wise King of the Forest toward targets, and monitors battles such as Ainz's duel with Shalltear—her intervention creating a crucial distraction. She oversees construction projects like a fortress in the Great Forest of Tob and resource warehouses, utilizing golems and undead laborers. During diplomatic encounters, such as with the Giant of the East and Serpent of the West, she captures adversaries when negotiations fail. She also accompanies Ainz on expeditions, retrieving rare herbs or traveling to the Dwarf Kingdom as a bodyguard. Her development includes moments challenging Ainz's decisions she deems inappropriate, such as objecting to using her warehouse for meetings with outsiders or criticizing his behavior as "perverted." She advocates for gender-role reversals in clothing preferences, though overruled. Despite her assertiveness, she remains deeply devoted to Nazarick and its ruler, consistently seeking his approval and comfort.