Tanjiro Kamado, eldest son of a mountain-dwelling charcoal-burning family in Taisho-era Japan, shouldered responsibility for his household after his father’s death, selling charcoal to sustain his siblings. His life fractured when the demon Muzan Kibutsuji slaughtered his family, leaving only his sister Nezuko alive—though transformed into a demon. Driven by vengeance and hope for her cure, he enlisted in the Demon Slayer Corps. Trained by Sakonji Urokodaki in Water Breathing, Tanjiro later discovered his lineage’s ancient Hinokami Kagura, identified as Sun Breathing. Merging its raw power with Water Breathing’s fluid adaptability, he honed a unique combat style to challenge elite demons. Standing 165 cm with a muscular frame, Tanjiro’s black hair flares red at the tips, complementing a flame-shaped scar from a childhood burn. His checkered haori and wooden box shield Nezuko from sunlight. Severe injuries—a severed arm and poisoned eye from battles—faded temporarily during a demonic transformation, but as a restored human, he bore a withered limb and impaired vision. Empathy defines Tanjiro: he mourns demons even as he destroys them, strategizing mid-fight to exploit vulnerabilities. Though respectful to foes, he fights ruthlessly. Bonds with comrades Zenitsu and Inosuke, initially contentious, solidified into loyalty through shared hardship. Visions of ancestral dancers guided him to master Sun Breathing, equipping him to confront Muzan directly. In their final clash, Muzan’s blood briefly turned him demonic, testing his resolve until allies reversed the transformation. Post-war, he wed Kanao Tsuyuri, fathered descendants, and revived his family’s traditions. His legacy rests on avenging his kin, curing Nezuko, and aiding Muzan’s defeat—anchored in unyielding justice and compassion that transformed a grieving brother into a legend.