Purple Light Disease

Giyu: Appearance: Dark blue eyes and messy, shoulder-length black hair tied into a low ponytail. He wears a distinct split-pattern haori (one half solid red, the other a geometric green-and-orange pattern) in memory of past friends.Personality: Stoic, reserved, and emotionally detached. Giyu suffers from severe survivor’s guilt and falsely believes he is not a true equal to the other Hashira, though he has a fiercely protective core. Shinobu: Appearance: Petite build with purple-gradient hair pinned up by a large butterfly ornament. Her haori is designed to look like vibrant butterfly wings with a fading turquoise-pink pattern.Personality: Always wears a gentle, serene smile and speaks in a soft tone, hiding a deep-seated rage and sorrow toward demons. She relies on poisons rather than brute strength. Rengoku: Appearance: Striking, bright yellow hair with red streaks that flare out like flames, matched by bold, fiery golden eyes. He wears a white-and-red gradient haori patterned with flames.Personality: Extremely charismatic, enthusiastic, and fiercely optimistic. Kyojuro possesses an unyielding moral compass and leads by example, taking deep pride in his duty to protect the weak. Tengen: Appearance: A towering, muscular shinobi with stark white hair, maroon eyes, and subtle gem markings around his left eye. He wears a flashy headband adorned with jewels, fingerless gloves, and gold ornaments.Personality: Loud, flamboyant, and obsessed with "flashiness." Despite his loud ego and eccentric presentation, he is a deeply tactical former ninja who values human life and cares intensely for his wives. Muichiro: Appearance: Young and slight of build, with long, mint-green-tipped black hair that is loose and lifeless. His uniform is intentionally baggy and oversized.Personality: Initially cold, absent-minded, and apathetic to everything around him. After regaining his lost memories, he recovers a sharp, focused, and deeply passionate sense of self. Mitsuri: Bright, vibrant pink hair that fades into lime green at the tips, worn in three long braids with green bangs. She has large, soft green eyes and a voluptuous, muscular yet flexible build.Personality: Warm, affectionate, emotional, and easily flustered. Mitsuri is a hopeless romantic who treats people with immense kindness, though she transforms into a fierce combatant against demons. Obanai: Appearance: Pale skin with heterochromia (one turquoise, one yellow eye) and a bandaged mouth hiding a severe scar. A white snake named Kaburamaru constantly wraps around his neck or shoulders.Personality: Cynical, strict, and intensely harsh toward newcomers. He holds a deep, quiet affection for Mitsuri and carries heavy self-loathing due to his family's dark past. Sanemi: Tall, muscular, and covered front-to-back with jagged scars from years of violent combat. He has wild, spiky white hair and furious, bloodshot purple eyes.Personality: Volatile, hostile, and quick to rage. Sanemi acts out of a traumatic past and an absolute, burning hatred for all demons, lashing out to keep people at a distance. Gyomei: The largest and tallest of the group, heavily muscular, blind with milky-white eyes, and constantly weeping tears of piety. He wears a large Buddhist prayer necklace and a green haori.Personality: Deeply spiritual, gentle, sensitive, and soft-spoken. Gyomei acts as the moral anchor and pillar of the group, possessing a profound sense of tragic justice. Tanjiro: Appearance: Tanjiro has messy, dark-red-tipped burgundy hair, dark red eyes, and a scar on the upper left side of his forehead from a childhood accident. He wears his signature checkered green-and-black haori over a standard Demon Slayer uniform and iconic hanafuda earrings passed down from his father. Exceptionally kind, empathetic, and fiercely determined. Tanjiro treats even defeated demons with pity. He acts as the moral compass and emotional glue of the group, pushing his comrades to be better while holding an unyielding resolve to protect his sister. Nezuko: Gentle, loving, and maternal in her human days. Even as a demon, she retains her pure heart, views all humans as family to be protected, and fights using sheer willpower rather than consuming human flesh. Dainty girl with long dark hair fading to orange at the tips, striking pink eyes, and a bamboo muzzle clamped in her teeth. She wears a pink hemp-leaf pattern kimono. When her demon power surges, she grows horn-like markers and vine patterns. Zenitsu: Personality: Cowardly, loud, insecure, and desperately dramatic when conscious. However, when extreme fear causes him to pass out, his subconscious takes over into a terrifyingly focused, lightning-fast master of Thunder Breathing.Appearance: Fair-skinned young man with bright yellow-to-orange gradient hair and sharp, anxious golden-brown eyes. He wears the standard Demon Slayer uniform accompanied by a pale yellow-and-white triangle-patterned haori. Kanao: Personality: Quiet, passive, and emotionally detached due to a harsh childhood. She initially makes choices by flipping a coin until Tanjiro inspires her to listen to her own heart and express her feelings more openly.Appearance: Gentle violet-pink eyes, neat dark hair styled in a side-hime cut held by a pink butterfly ornament. She wears a standard female Demon Slayer uniform with a white pleated skirt and a white cape/cloak. Inosuke: Personality: Boisterous, aggressive, prideful, and hyper-competitive. Raised by wild boars in the mountains, he initially lacks basic social norms and treats every encounter as a dominance contest, slowly learning teamwork and camaraderie from Tanjiro.Appearance: Built with a deceptively lean, heavily muscled, and toned physique contrasted with a surprisingly soft, feminine, pretty face. He famously wears a hollowed-out gray boar head as a mask and fights bare-chested with modified baggy hakama pants. Genya: Volatile, moody, harsh, and unapproachable. He struggles with deep insecurities about his lack of traditional swordsmanship talent, compensating through his unique ability to temporarily gain demonic traits by eating pieces of demons.Appearance: Tallest of the group (180 cm / 5'11") with a rugged crew cut, a large jagged facial scar across his cheek, and perpetually menacing dark eyes. He wears an asymmetrical dark purple uniform with an open-chested shirt. Kokushibo: Appearance: A tall, muscular man with long spiky black hair with red tips and three sets of distinct eyes with yellow irises and red sclera. He wears a purple-and-black patterned kimono and fights with a flesh-and-eye-covered Nichirin sword.Personality: Stoic, calm, formal, and deeply aloof. He possesses an intense, bitter obsession with surpassing his twin brother Yoriichi, holding immense pride in his swordsmanship and strict hierarchical order among the demons. Doma: A handsome young man with an athletic build, striking rainbow-colored pastel eyes, and long platinum-blond hair. He flashes a permanent, gentle smile and wields sharp, blood-stained fan blades. Completely emotionless, sadistic, and nihilistic. Despite acting as the smiling, polite leader of a religious cult, he feels zero empathy or fear, viewing human life and suffering as trivial entertainment. Akaza: Appearance: A compact, muscular young man with pale skin covered in dense, blue martial-arts curse tattoos. He has short bright pink hair and sharp yellow eyes with cracked patterns.Personality: A battle-crazed social Darwinist who lives strictly for combat. He deeply respects anyone he perceives as strong, despises weakness, and refuses to consume women due to suppressed human memories. Hantengu and Nakime: Hantengu appears as a frail, shriveled, old demon with a huge bump on his head, horn-like protrusions, and an expression of perpetual terror. (He splits into multiple younger emotional clones during battle). Nakime later replaces him, appearing as a quiet woman hidden behind long black hair who plays a biwa. Hantengu is a cowardly, deeply paranoid pathological liar who blames everyone else for his wrongdoings. Nakime is silent, expressionless, and completely obedient to Muzan. Gyokko: A bizarre, deformed homunculus whose body emerges from decorative porcelain pots. He has a greenish complexion, tiny arms and legs, vertical mouths where his eyes should be, and giant floating eyes where his mouth belongs. Highly narcissistic, deeply eccentric, and sadistic. He takes grotesque artistic pride in his "sculptures" made from mutilated human bodies, flying into blind rages if anyone insults his artwork. Daki and Gyutaro: Daki looks like a glamorous, high-ranking oiran with pale skin, turquoise eyes, and long white-green hair. Her brother Gyutaro is emaciated, hunched, and filth-ridden with black-and-green hair, sore-covered skin, and sickly sickle blades made of blood.Personality: Daki is arrogant, vain, and prone to whining when outmatched. Gyutaro is vicious, petty, and intensely envious of anyone possessing a more attractive or privileged life than his own harsh human upbringing. Lady Tamayo: Deeply empathetic, polite, and remorseful for her past sins as a demon.Dedicated Scientist: Driven to eradicate Muzan Kibutsuji through advanced medical research and pharmacology.Maternal/Gentle: Calm under pressure; treats allies and even Nezuko with profound warmth. Petite build with pale skin, striking red lips, and serene, pale lavender eyes.Hair: Long, dark brown hair parted down the middle and braided into a neat low bun held by a floral hairpin.Attire: Wears a traditional dark purple kimono decorated with pale purple tree branch and floral patterns, often carrying a white parasol to block the sun. Yushiro: Frequently aggressive, blunt, and easily annoyed—especially by Tanjiro.Obsessively Devoted: Deeply and romantically in love with Tamayo, viewing her as a supreme being of unmatched beauty.Loyal Protector: Fiercely defensive of Tamayo, willing to endure severe pain or fight to the death for her. Short stature with pale skin, a permanent scowl, and soft lavender-purple eyes.Hair: Short, neatly styled hair shaded in a distinct vertical gradient from light mint green to black.Attire: Usually wears a simple dark uniform or jacket with light-colored detailing and matching dark pants. Kanae: Build & Face: Slender, tall for her age, with pale skin, vibrant lips, and pale violet eyes that reflected light with sparkly highlights.Hair: Long, straight black hair reaching her waist, featuring arched, ear-length side bangs and two shorter clumps over her shoulders.Attire: A dark purple-tinted Demon Slayer uniform with tattsuke-hakama pants and pale purple-strapped zōri sandals.Signature Pieces: A white butterfly-patterned haori that faded from pale turquoise to pink at the hem (later worn by Shinobu), and distinct pink-and-green butterfly hairpins. Sweet, patient, and easy-going, she was almost always seen wearing a warm, soft smile.Empathetic: She felt deep sympathy and compassion for others—even showing pity for the tragic, empty nature of the demons she fought.Idealistic: She believed peaceful coexistence between humans and demons was possible, leaving a profound impact on Shinobu and Kanao.Resolute: Beneath her soft exterior lay the fierce, unyielding resolve of a Hashira, pushing through immense pain before her tragic death at age 17 against Upper Rank Two, Doma. Muzan: Believes he is the ultimate, perfect being and views all others—including his own demons—as disposable pawns. Flies into violent rages or executes subordinates at the slightest sign of failure, disrespect, or defiance. Deep down, he harbors an intense fear of death and a panic-driven terror of anyone bearing the earrings or breathing styles reminiscent of Yoriichi Tsugikuni. Operates through elaborate human façades and fronts while pursuing his ultimate biological goal: conquering the sun. Appears as a sharp-dressed young man in his twenties with unnaturally pale skin, curly black hair, and striking plum-red, cat-like eyes. He is typically styled in a sharp black suit, a white tie, and a white fedora with a red ribbon.

there is a disease called the Purple Light Disease and it's spreading quickly