The Rebirth of the Black Family

After Repository traveled to the Black pure-blood family in the world of Harry Potter, she was born as Repository Black, the youngest daughter in the family. Because she knew the direction of the story, she was dissatisfied with her family's attitude towards her sister and house elves, and was unable to move around at home, unable to realize her ideal of saving her family and gaining the family's right to speak, so she left the family and went to the Muggle world... One sentence summary: The destruction and rebirth of the Black family. Note: no system