Xia Xia, a D-rank Regular and Light Bearer, begins her climb as a shrewd information merchant on the 28th Floor, driven by a mercenary pragmatism that demands payment for her services. Her unpredictable reactions under pressure—evident during crises like the Hand of Arlen’s detonation—mask a sharp mind attuned to profit. Adorned with rabbit ears, light brown-blonde hair, and amber eyes, her bright red attire shifts from flowing robes to a sleek dress by the Hell Train arc, mirroring her evolving alliances. Once a FUG operative tasked with eliminating E-rank Regulars threatening Jyu Viole Grace’s rise, she manipulated events to amplify his reputation as a "God," orchestrating battles and ambushes during the Workshop Battle. Though loyal to FUG’s goals, she later abandons them to aid Viole in a hostage rescue, citing cryptic motives tied to his lingering influence. Commanding three Lighthouses, she served as both strategist and combatant for Team FUG, directing allies with tactical precision. Her warnings to Viole about maintaining his followers’ loyalty and her clashes with teammates like Novick and Ran underscored her complex balance of ambition and obedience. Her relentless pursuit of wealth stems from ties to an unnamed species requiring vast resources, a mystery fueling her transactional choices—withholding critical intel without payment or prioritizing profit over factional loyalty. Post-FUG, she allies with Khun’s team, leveraging her cunning in intelligence operations against Rachel’s faction. Xia Xia’s journey traces a reluctant pivot from self-interest to collaboration, navigating survivalist instincts amid shifting loyalties. During the Hell Train’s trials, her adaptability shines through trap navigation and covert coordination with Hwa Ryun, proving her indispensable in the Tower’s deadly games.