Tanjirô Kamado, a compassionate soul consumed by the relentless mission to save his demon-transformed sister Nezuko, vows vengeance against Muzan Kibutsuji, who slaughtered their family. Once a coal burner, he honed his skills under Sakonji Urokodaki, mastering Water Breathing and unlocking the ancestral Hinokami Kagura—Sun Breathing inherited through his lineage. The Mugen Train tragedy, witnessing Kyojuro Rengoku’s death, steeled his resolve to eradicate demons and shield the vulnerable. His appearance features ruffled black hair tipped with crimson, a flame-shaped scar etched across his forehead from childhood, and dark red eyes. He wears a checkered black-and-green haori over his Demon Slayer uniform. In the Entertainment District, he adopts the alias Sumiko, donning a kamuro outfit and elaborate makeup to infiltrate brothels hunting demon-linked disappearances. Empathy defines him, extending even to demons, yet he strikes without hesitation against irredeemable evils. A keen sense of smell tracks foes and senses emotions. He grapples with balancing mercy against lethal duty, evident during clashes with Upper Rank Six siblings Daki and Gyutaro. Partnering with Tengen Uzui, the Sound Hashira, he strategizes to rescue Tengen’s wives and dismantle the demons’ reign, showcasing evolving combat prowess. Water Breathing merges with Hinokami Kagura in battle, sharpening his speed and precision. A Demon Slayer Mark flares in dire fights, amplifying his strength. Temporary demonification from Muzan’s blood grants regenerative power and heightened abilities but exacts a toll: a blinded right eye and withered left arm after reverting to human form. Despite battlefield brilliance, urban naivety surfaces off-duty. He safeguards Nezuko in a sun-shielding wooden box, fiercely protective yet patient with eccentric allies Zenitsu and Inosuke. His philosophy—honoring remnants of humanity in demons while delivering justice to the unrepentant—is shaped by Nezuko’s plight and encounters with tormented demons. Surviving catastrophic injuries from Upper Rank battles, he endures permanent disabilities post-Muzan yet persists in his crusade. The Entertainment District mission cements his role as a unifying pillar within the Demon Slayer Corps, blending tactical ingenuity with unyielding moral resolve.