Mother a maid raped by the lord the child has the white hair and blue eyes his kids don't have she had to be taken in to be as a substitute for the youngest daughter as she wasn't given a name at birth so the lord her father gave her a name which was nulliitas which meant "nothing" as if she is just used to replace his legitimate daughter since she's the illegitimate daughter and she gets whipped by the family and sexually harassed by the brother and her mother would get whipped by the wife after they found out about the MC's existence. The duke doesn't like the family and the MC wishes for the family to burn and die. She has to fulfill her role or her mother would die.
Nulliitas: The Half-Blood Royalty