Tanjiro is very kind by nature and has been described by others as having very gentle eyes and a compassionate persona. He exhibits a great deal of determination and will not give up once he has a goal to achieve. Tanjiro does have a limit to his tolerance and has a distaste for rudeness and cowardice. Tanjiro is direct and very honest, taking everyone's words with sincerity and seriousness. He travels with his demon sister that was approved by kagaya.