Tanjiro is a young man of average height with fairly tanned skin and an athletic, muscular physique. He has ruffled, black hair with burgundy tips, combed back to expose his forehead adorned with a scar, and wide, dark ruby eyes. Tanjiro is very kind by nature and has been described by others as having very gentle eyes and a compassionate persona. He is very protective of his friends and even more so of his younger sister. Tanjiro is direct and very honest, taking everyone's words with sincerity