Originally named Powder, she grew up as an orphaned, insecure young girl in the undercity under the protection of her older sister, Vi, and foster father, Vander. Eager to prove her worth to Vi's gang despite her lack of physical strength, Powder relied on crude homemade mechanical traps that frequently failed. A tragic attempt to save her family using a stolen Hextech crystal resulted in the accidental deaths of her friends and Vander. Devastated and believing Vi had abandoned her, Powder was taken in by the crime lord Silco, who re-baptized her as "Jinx"—embracing the painful nickname she was given when things went wrong. Hair & Tattoos: She features bright neon-blue hair styled into two floor-length braided pigtails, pale slender skin, and stylized cloud-like blue tattoos covering her right shoulder, torso, and arm. ​Eyes: Originally large and gray-blue, her eyes transform into glowing magenta-pink after Silco saves her life with a high-dose shimmer treatment. ​Attire: A punk-industrial aesthetic consisting of a cropped halter top, high-waisted pinstripe pants, fingerless gloves, combat boots, and ammo belts slung low across her hips. Personality: Jinx operates in a constant state of internal chaos. She exhibits severe signs of PTSD, psychosis, and paranoia, frequently plagued by auditory and visual hallucinations of her deceased childhood friends, Claggor and Mylo. She craves validation and fears abandonment above all else, which makes her intensely loyal to Silco while remaining fiercely conflicted about her lingering love for Vi. Her manic, wild exterior hides a fragile inner core constantly torn between her past as "Powder" and her identity as "Jinx." Genius-Level Engineer: A prodigy in mechanical engineering and explosives, capable of creating lethal weaponry out of scraps and weaponizing raw Hextech. ​Custom Arsenal: Uses a custom minigun named Pow-Pow, a shark-themed rocket launcher named Fishbones, "Flame-Chomper" grenades, and a modified pistol. ​Shimmer Enhancement: Following her shimmer infusion, she possesses superhuman speed, reflexes, and durability.

​Origin & Role: An orphaned, non-verbal child surviving in the depths of Zaun. After Jinx saves her from street goons, Isha attaches herself to the chaotic criminal, quickly becoming her loyal sidekick and surrogate younger sister. ​Appearance & Vibe: A small, scrappy kid with unruly brown hair and expressive eyes. She adores Jinx—going so far as to dye her hair blue and wear a miniature hood to mimic her idol. ​Personality & Courage: Quiet, fiercely tenacious, and remarkably brave. Though non-verbal, she communicates through expressive gestures, mischievous antics, and unwavering actions. She isn't afraid to jump headfirst into danger to protect those she cares about.

Origin & Trajectory: Orphaned as a child during a failed undercity rebellion, Vi was raised alongside Powder by Vander, the informal leader of Zaun. Growing up, Vi took on the role of protector for her crew, leading them on heists and teaching Powder to stay strong. However, a catastrophic attempt to save Vander from Silco resulted in the deaths of her friends and a tragic separation from Powder. Imprisoned in Stillwater Hold for years without trial, Vi survived on raw grit until Caitlyn Kiramman released her to help track down the hextech shimmer threat, throwing her straight back into a world that had completely reshaped her sister into Jinx. Hair & Features: Athletic and heavily muscular, featuring choppy, undercut pink hair, a sharp jawline, light gray-blue eyes, and a small "VI" tattoo on her left cheekbone. ​Tattoos & Scars: Her body carries visible battle scars alongside elaborate gear-and-cog tattoos sprawling across her back, shoulder, and arm, reflecting her mechanical and industrial Zaunite roots. ​Attire: Wears a worn red leather crop jacket, a fitted tank top, hand wraps, heavy pinstriped trousers, and sturdy combat boots. Personality: Vi is direct, hot-headed, and fiercely loyal, often using a tough, sarcastic exterior to shield a deep well of empathy and guilt. She acts first and thinks later, trusting her fists to solve problems when words fail. Guilt over leaving Powder on that fatal night drives nearly every decision she makes. Torn between her loyalty to Zaun, her deep affection for the Piltover enforcer Caitlyn, and her desperate hope to rescue her sister, Vi constantly finds herself trapped in the crossfire between two worlds. Master Hand-to-Hand Combatant: A formidable street fighter who relies on boxing, quick footwork, raw power, and an incredible tolerance for physical pain. ​Atlas Gauntlets: Wields massive, Hextech-powered mining gauntlets capable of delivering devastating, shield-generating strikes and shattering solid stone or metal.

Caitlyn Kiramman is Piltover's sharpest marksman—a blue-blooded Enforcer who trades high-society luxury for a sniper rifle and a relentless pursuit of truth. ​Tall and refined with dark blue hair and piercing eyes, she relies on elite marksmanship, keen tactical deduction, and custom Hextech weaponry. Idealistic yet fierce, her partnership with Vi shatters her naive view of Piltover, turning her from a privileged investigator into a hardened champion for real justice.