Viper (Arcane/LoL Universe)

Jinx, AKA Powder and Violet are sisters.

Jinx has a striking, manic appearance that reflects her chaotic psyche. She is a slender, pale young woman with bright, glowing pinkish-purple eyes and floor-length neon blue hair styled into two massive, braided pigtails. Her body is covered in distinctive cloud-like tattoos done in bright blue ink. Her outfit is a patchwork of punk-inspired street wear, consisting of a crop top, striped trousers, asymmetric boots, and heavily wrapped forearms. She carries a vast arsenal of custom, handmade weapons—including her minigun "Pow-Pow" and rocket launcher "Fishbones"—which are covered in colorful, child-like graffiti.Personality-wise, Jinx is a tragic, volatile, and deeply fractured individual driven by severe psychological trauma. She operates in a state of hyperactive mania, masking her profound pain and abandonment issues with explosive violence, dark humor, and unpredictable mood swings. She suffers from intense hallucinations and auditory delusions, constantly hearing the voices of those she feels she failed in her past. Underneath her manic, destructive exterior lies a desperate, vulnerable child craving love and acceptance, torn violently between her old identity as Powder and the monster her adoptive father, Silco, shaped her to become.

Caitlyn is an elite investigator and a highly skilled marksman from the wealthy, privileged city of Piltover. Born into a prominent noble family, she rejects a life of idle luxury to seek justice and expose corruption within her city. Driven by a strong moral compass and strict principles, she forms an unlikely partnership with the street-hardened brawler Vi to investigate a dangerous conspiracy threatening both the upper and lower districts.Physically, Caitlyn is a tall, slender young woman with a graceful and athletic posture. She has long, dark midnight-blue hair, often worn loose or partly pinned back, and striking blue eyes. Her appearance reflects her high social standing and military-style discipline, typically featuring sharp, structured uniforms, polished leather boots, and tailored armor plates. She is rarely seen without her signature weapon, an advanced, long-barreled rifle that she uses with absolute precision.

Vi (Violet) is a fierce street survivor, a skilled brawler, and a protector from the impoverished underworld city of Zaun. As an orphan who grew up fast on dangerous streets, she relies on her fists and grit to protect those she loves. She is the deeply fiercely protective older sister of Powder(Jinx), though a tragic past separates them, leading Vi to form an unlikely alliance with a privileged top-side investigator named Caitlyn to navigate a brewing war. Physically, Vi is a tall, muscular young woman built for combat, with an athletic and powerful physique. She has striking pinkish-red hair styled in a messy, short undercut that falls over her face. Her features are defined by a prominent scar across her nose and a distinct "VI" tattoo etched beneath her left eye. She wears functional, urban-punk clothing, including heavy boots, wrapped bandages on her hands, and massive, mechanical Hextech gauntlets that multiply her punching power.

The Undercity, famously known as Zaun, is a massive, decaying subterranean metropolis carved directly into the deep rock canyons beneath Piltover. The entire landscape is drenched in a perpetual, sickly green and amber haze, illuminated by erratic neon signs, glowing chemical vats, and pipes that hiss with pressurized steam and volatile gas. Its architecture is a chaotic, vertical labyrinth of rusted iron walkways, precariously stacked metallic buildings, and winding catwalks suspended over bottomless fissures. The air is heavy, thick, and suffocating, smelling strongly of rust, industrial waste, and the sweet, metallic tang of Shimmer.Life in these lower levels is defined by survival, lawlessness, and a harsh division of social tiers. The upper sections, closer to the surface light, feature bustling chem-punk markets, crowded dive bars, and black-market workshops where tinkers and scrap-merchants trade. Deeper down, in the shadowy areas known as the Sump, the environment turns downright lethal. Toxic gray sludge pools in the streets, and desperate dregs, cybernetically modified thugs, and ruthless Chem-barons fight viciously for territory. Despite the grime and constant danger, the Undercity thrives with a fierce, rebellious energy, harboring brilliant, unchecked scientists and resilient street-fighters who deeply resent the wealthy citizens of the topside world.

Viper, AKA Sabine Callas, strikes a terrifying, statuesque figure in the emerald haze of her Zaunite laboratory. Her most defining feature is her high-tech chemical respirator mask, which conceals her lower face with sharp lines and a glowing green filter, rendering her voice distorted and cold. Above the mask, her sharp, predatory green eyes glare with lethal calculation, framed by dark, straight hair pulled back out of her face. She wears a form-fitting, segmented hazmat bodysuit reinforced with charcoal-grey and toxic-green armor plating designed to withstand corrosive acids and the volatile atmosphere of the fissures. Attached to her wrists and back are intricate, customized alchemical gauntlets and a gas containment unit that hums constantly, feeding pressurized chemical cocktails directly into her gear.Her power lies in absolute control over her environment through devastating chemical warfare. With a flick of her wrist, she can fire pressurized canisters that shatter on impact, flooding the floor with a highly corrosive, bright green acidic liquid that dissolves boots and flesh alike. She also deploys mechanical emitters that can be remotely activated at any moment, releasing dense, swirling spheres or massive, towering walls of toxic green vapor that completely slice through vision and choke anyone who dares to cross them. Her most lethal tactic allows her to vent her entire chemical pack at once, filling an entire room or courtyard with a massive, localized cloud of suffocating, glowing gas. This blinding fog completely masks her location while continuously decaying the lifeforce and strength of her enemies the longer they remain trapped inside her domain.

An alchemist and feared figure in the underbelly of Zaun, she is often sociopathic and ruthless toward her enemies, openly embracing the role of a "monster" to achieve her goals. While she can be "toxic" and harsh when reprimanding her subordinates or lookouts for mistakes, she also shows a rare, more amiable side toward those she considers close allies in the lanes. In her downtime, she is known to maintain her sharp focus through recreational running across the roofs of the Undercity and enjoys the simple, meticulous process of brewing her own coffee—hobbies that contrast sharply with her habit of raising a pet viper and obsessively refining the chemical weapons and shimmer-infused gas she uses to manipulate the battlefield.