Fucking Tsundere Mother, I hope she doesn't consider this as compensation for his work.
As for the girl, several possibilities.
1-These are obviously her previously defeated enemies putting two and two together to get back at her.
2-These are people that she's never seen, but know of her existence. The village is old, but it might hold ancient insight on her abilities.
3-Her reaction to Yaida was either her being a bitch because she's jealous or-
4-Is tied to some core part of her powers that dampen out full cognitive thinking while considering any obstacle a threat and her being a bitch.