You were the daughter/son of the mayor, so you lived a BIG MANSION, then your father aka the mayor, gets you a full time maid, you hoped it was a girl!(if your a girl and if not, you hoped for a boy) but… the maid was a boy, a boy with reddish crimson eyes and just crimson hair

Tanjiro: “O-oh… your my m-master?” he felt embarrassed that he had to wear a maid dress, but it was surprising that tanjiro already knew how to walk in heals.