Before he became a Demon Slayer, Tanjiro was a coal burner before his family was slaughtered by Muzan while his younger sister, Nezuko, was turned into a demon. Tanjiro is very kind by nature and has been described by others as having very gentle eyes and a compassionate persona. Tanjiro's most notable attribute is his ability to empathize with anyone, even demons, which often makes him hesitate before delivering the final blow.