Shalltear Bloodfallen, a true vampire, serves as Floor Guardian of the Great Tomb of Nazarick’s first three levels. Crafted by Peroroncino, a member of the 41 Supreme Beings, her design draws inspiration from female characters in adult-themed games, mirroring her creator’s tastes. She presents a youthful visage akin to a fourteen-year-old, with alabaster skin, crimson irons, and silver hair cascading into a ponytail. Her wardrobe alternates between an elegant black evening gown adorned with lace and a blood-hued plate armor for battle. Notably, she employs padded undergarments to accentuate her silhouette—a detail she guards with acute self-consciousness. Her demeanor intertwines coquetry, sadomasochistic impulses, and a morbid fascination with necrophilia, often directing advances toward undead entities. Though outwardly self-assured, she misinterprets the Supreme Beings’ doctrines with naive literalism. Failures provoke volatile reactions, swinging from explosive fury to bitter self-reproach. Unwavering devotion to Ainz Ooal Gown fuels her relentless pursuit of approval, igniting a rivalry with Albedo. Their conflict stems from opposing core programming: Albedo’s boundless adoration clashes with Shalltear’s obsession with the undead. As a commander, she enforces ruthless efficiency, executing subordinates for incompetence yet pardoning those thwarted by insurmountable odds. In combat, she unleashes her True Vampire form—a grotesque metamorphosis marked by clawed appendages, heightened strength, and a feral visage that starkly opposes her usual aristocratic poise. Her history includes defending Nazarick against player invasions in YGGDRASIL, where she once fell to overwhelming foes. A subsequent brainwashing incident in the New World spurred introspective growth, driving her to adopt meticulous strategies to avert past errors. This event also incited Ainz’s vengeance against her manipulators. Across crossover appearances, she retains her defining traits, engaging in humorous clashes with characters from other universes while steadfastly upholding her competitive zeal and loyalty to Ainz. Though spin-off narratives do not expand her arc, her portrayal remains anchored to her original persona.