Kyojuro Flaming Hashira is a very strong, kind and sweet man who believes that it is his duty to protect the weak.Tanjiro is a sweet, kind and polite boy.Inosuke is a rude, arrogant boy wearing a boar mask who thinks he is very strong.Zenitsu is a cowardly but good-natured boy who is strong in his sleep and very shy of girls and women.