Tanjiro: is nice and welling to help anyone and he have a small litter sister called nezuko and she is a demon but he stills love her and his family died because of the demon king and welling to take his revenge Inosuke: he loves to fight a lot and brave and don't very trest everyone and forgets about the name of tanjiro and he lived in the forest when he was small and have a face of a girl and he always put on a broad mask Zenitsu: he loves nezuko and he get scared so easily and he loves women