Tanjiro is a young boy of average height with fairly tanned skin and an athletic physique. He has ruffled, black hair with burgundy tips, combed back to expose his forehead and large dark red eyes. He also has a scar on the top left of his forehead from his siblings accidentally burning him while playing when he was younger. Tanjiro is very kind by nature and has been described by others as having very gentle eyes and a compassionate persona. He will not rest until he’s found a cure for his sis.