Ryū Lyon, once called Gale in her adventurer years, is an elf distinguished by sky-blue eyes and vibrant green hair—originally golden-blonde until dyed by coworkers at the Hostess of Fertility, though it returns to its natural hue following the War Game against Freya Familia. Hailing from a tribe tasked with nurturing sacred trees, she abandoned her forest home after rejecting the High Elves’ authoritarian rule, finding refuge with Orario’s Astraea Familia. This righteous guild, led by the goddess Astraea and comprising allies like Alise Lovell and Kaguya, shaped her early principles and forged lasting bonds.

Tragedy struck when Evilus ambushed the Astraea Familia on the Dungeon’s 37th floor, slaughtering all except Ryū and her goddess. Driven by grief, she waged a vengeful two-month crusade against Evilus, decimating their ranks but suffering near-fatal wounds. Rescued by Syr Flover and healed by Mia Grand, Ryū abandoned adventuring, concealing her identity as a waitress at the Hostess of Fertility.

Years later, she rediscovered purpose through protecting others, notably aiding Bell Cranel in dungeon expeditions. As a former Level 4 adventurer who ascended to Level 6, she wields formidable speed, strength, and endurance. Her combat skills include Mind Load, amplifying attacks through mana expenditure, and Concurrent Chanting, enabling spellcasting mid-motion. Magical abilities encompass the offensive Luminous Wind, conjuring green stardust projectiles, and the healing spell Noah Heal.

During the *Arrow of the Orion* conflict, Ryū allies with Bell’s group and Hermes Familia to confront the monster Antares, extending her influence beyond Orario. Balancing waitress duties with clandestine missions, her journey evolves from vengeful isolation to protective mentorship, embodying the justice and camaraderie instilled by her Astraea Familia heritage.