Tanjiro is very nice, kind and helpful, he always have a smile at his face and willing to help anyone while Inosuke is childish idiot and day dream alot he always like to run around he wears a boar head because when he was a baby a boar treats him like a baby and the mother boar died and he cuts the mother boar head and it's it inside his head when he was a kid that's the reason he wears the mother boars head but he still take it off sometimes Inosuke is a boy but he have a very beautiful face t