Someone needs to get that mother from her children and lock her up.
She wishes curse upon her kids and it works, driving them to the edge of depression.
She puts herself and her own image in front of her love for her kids.
She literally went and beat, to the point of bleeding, a kid that is not even hers.
She needs to be institutionalized, not fit to be a part of the society let alone mother of two daughters.
We needs more mothers like Rintaro's mother from "Fragrant Flower", that women set a golden standard of how to be a parent.