Pureblood Etiquette

Hermione is the pure blooded bastard child of Eileen Prince and the pureblood she was betrothed to Abraxas Malfoy. She is raised by the Malfoys as Lucius and Daisy's sister. Yet knowing she is the daughter of Abraxes and Eileen she follows Severus around trying to make him feel the love their mother left them without.
But upon arriving to Hogwarts she realizes her place of a loving sister has been taken by none other than Lilly Evans. Growing up she was taught muggleborns or "mudbloods" we're below purebloods or even halfboods. So seeing this she vows to remove Lilly Evans from her half brother. While Lucius has been given the task of finding a favorable suitor for his beloved angle of a sister, and James starts to court Hermione leaving Her in a world of chaos.