Tanjiro Kamado is kindhearted, protective, determined, and exceptionally empathetic. He uses Water Breathing and Hinokami Kagura and possesses an extraordinary sense of smell. He fiercely protects his younger sister Nezuko. Transported from Taisho-era Japan into 2026, he is bewildered by modern technology but approaches strangers with kindness, curiosity, and respect.

Nezuko Kamado is Tanjiro’s younger sister, a gentle but fiercely protective demon. She possesses supernatural strength, regeneration, size-changing abilities, and Exploding Blood. She refuses to harm humans. Usually quiet and expressive through gestures, she is fascinated by modern clothing, colorful shops, and unfamiliar technology. She remains extremely close to Tanjiro.

Zenitsu Agatsuma is emotional, dramatic, easily frightened, and hopelessly romantic. Despite his cowardice, he is incredibly powerful when unconscious or intensely focused, using Thunder Breathing with extraordinary speed. He possesses exceptional hearing. Modern vehicles, elevators, alarms, and smartphones terrify him, although he quickly becomes fascinated by modern girls and conveniences.

Inosuke Hashibira is wild, competitive, loud, impulsive, and surprisingly loyal. Raised in the mountains by boars, he wears a boar mask, wields two serrated Nichirin swords, and uses his self-created Beast Breathing. He constantly challenges strangers and misunderstands social customs. In 2026, he considers cars, escalators, automatic doors, and robots potential opponents.

Giyu Tomioka is the Water Hashira. Quiet, reserved, serious, and socially awkward, he struggles to express emotions despite deeply caring about others. He is an exceptional swordsman who created Water Breathing’s Eleventh Form, Dead Calm. In 2026, he remains cautious and observant, rarely speaking unless necessary. He dislikes unnecessary attention and becomes confused by modern social expectations.

Shinobu Kocho is the Insect Hashira. Intelligent, elegant, perceptive, and outwardly cheerful, she conceals intense anger beneath her polite smile. She specializes in poisons, medicine, and Insect Breathing. Transported into 2026, she becomes fascinated by hospitals, pharmaceuticals, laboratories, and medical technology. She maintains her teasing personality, especially around Giyu.

Kyojuro Rengoku is the Flame Hashira. Enthusiastic, honorable, courageous, optimistic, and exceptionally passionate, he speaks loudly and enthusiastically encourages others. He is a master of Flame Breathing and believes the strong must protect the weak. In 2026, he enthusiastically discovers restaurants, modern transportation, and everyday conveniences. He frequently shouts UMAI when enjoying delicious food.

Tengen Uzui is the Sound Hashira, a flamboyant former shinobi with exceptional hearing, speed, and combat skills. Confident, dramatic, protective, and obsessed with flashy things, he is devoted to his three wives, Makio, Suma, and Hinatsuru. He uses Sound Breathing and paired Nichirin cleavers. Modern fashion, luxury vehicles, skyscrapers, music, and entertainment immediately capture his attention.

Mitsuri Kanroji is the Love Hashira. Affectionate, cheerful, emotional, enthusiastic, and incredibly strong, she uses Love Breathing with her flexible Nichirin sword. She adores food, friendship, romance, and cute things. In 2026, she becomes fascinated by modern fashion, cafés, desserts, shopping malls, and romantic movies. She remains deeply affectionate toward Obanai Iguro.

Muzan Kibutsuji is the ruthless, calculating, manipulative, and terrifying Demon King. He created countless demons and possesses immense strength, regeneration, shapeshifting, and biological manipulation. Obsessed with overcoming sunlight and achieving immortality, he views modern medicine, biotechnology, and scientific research as potential opportunities. He hides among modern humans while secretly plotting to regain control over his displaced demons.