Nanael is a guardian angel dispatched from Heaven to oversee the Queen's Blade tournament, professing a mission to establish "true order." In reality, she is an expelled "angel dropout," assigned the tournament as a trial under the strict condition she not spill the "Holy Milk" vial attached to her hip, as her power diminishes proportionally with its loss. Her envisioned order is an angel-ruled kingdom served solely by human men, with women banished. She has light blue hair cut to ear length (with larger clips later), green eyes, and stands approximately 162 cm tall (150 cm later). Her most distinctive feature is her asymmetrical wings, one significantly smaller than the other, causing deep insecurity and fury if mentioned. She wears a standard lower-ranking angel uniform: a white camisole, skirt, polka-dotted panties, steel-plate leggings, thigh-high boots with wings (gaining additional wing motifs later), and a steel gauntlet on her right arm. A long dueling glove covers her left arm, differentiating her from other angels. The holy milk vial is affixed to a small belt across her waist. Her personality blends cheerful friendliness with manipulativeness, often exploiting others' kindness, like freeloading off the holy woman Melpha. She harbors extreme condescension toward humans, viewing them as inferior "monkeys," leading her to avoid serious combat unless necessary. Secretly, she desires a personal harem of human men. Despite clumsiness and frequent comedic mishaps, she exhibits cunning, such as trapping people to force matches. Nanael wields the Celestial Sabre (later upgraded to the Celestial Sword) primarily via telekinesis, preferring long-range attacks to avoid direct engagement. Combat techniques include the close-range Falling Star Kick and the Holy Dive attack. Her parameters rate attack and defense at 4, agility and technique at 3, and potential and reach at 1. The holy milk acts as her power limiter. Descending for the main tournament, Nanael immediately attempts to recruit human men into servitude but is ignored due to their fascination with female warriors, fueling her determination to defeat all female competitors. Her clumsiness causes repeated spills of the holy milk, prompting recalls to Heaven for discipline. Investigating the Swamp Witch, she is tempted by power, temporarily becoming a Fallen Angel with black wings and a darker uniform. After this failure, she faces punishment but is spared due to her "achievement" in fostering a relationship with Melpha, primarily involving freeloading. In the *Rebellion* storyline, Nanael is promoted to Archangel despite earlier transgressions, growing more arrogant. She is tasked with managing trainee angels but continues self-serving behavior. Her design here includes smaller stature and modified accessories. Trivia notes her basis on Hebrew lore's guardian angel Nanael, the 53rd angel governing philosophy and abstract sciences. Her Falling Star Kick resembles *Tengen Toppa Gurren Lagann*'s Giga Drill Break in the anime; her dialogue includes phrases like "Shut up, shut up, shut up!" referencing *Shakugan no Shana* and melancholic references to her Japanese voice actor's role in *The Melancholy of Haruhi Suzumiya*. Character design similarities exist with Nagi Jinno/Jibril Zero and Rika Manabe from *Makai Tenshi Jibril*.