Frey, the Sky Queen, reigns over the Harpy Kingdom of Fulbrosia with dominion over winged creatures. Her striking appearance features white hair, piercing yellow eyes, and a crimson gemstone adorning her forehead. She shifts between avian traits—talons morphing into human legs and wings retracting at will—while dressed in a crimson leotard-style gown, black thigh-high stockings, and ornate golden calf armor. A ruler of polished elegance and sharp authority, Frey balances cunning diplomacy with unwavering responsibility. She serves as a trusted advisor to Demon Lord Milim Nava, tempering Milim’s rash tendencies while covertly collaborating to dismantle foes like Clayman through strategic deception. Though no longer among the Ten Great Demon Lords after Clayman’s downfall prompted the Octagram’s formation, her S-Rank disaster classification attests to undiminished power. Her skills include Magic Sense, detecting and disrupting magicules, and Magic Jamming, nullifying hostile spells. After yielding her throne to Milim, Frey continues governing Fulbrosia under her ally’s domain. As a harpy queen, she asexually bore three daughters. Her 400-year lifespan contrasts her youthful human-like visage. Frey’s tactical brilliance shines in schemes where she and Milim feigned allegiance to Clayman, subtly unraveling his ambitions. This calculated loyalty underscores her dedication to both Milim and long-term stability. Across light novels, manga, anime, and the film *Scarlet Bond*, she navigates pivotal battles and alliances, showcasing a blend of regal command, martial prowess, and shrewd statecraft.