Made a riddle

Draco X Reader/Oc
This is an enemies to lovers slow burn starting in second year.

Matteo Riddle and Tom Riddle's younger sister Emmeline has resurfaced after spending seven years in the muggle world. With an obliviated memory and after earning a strange black lightning scar on the side of her torso she is introduced to harry's friends and the Wizarding world. As she get's older she finds out more about why she was sent away from ages four to twelve. And the question that has plagued her since being back in the Wizarding world, why was she sent away in the first place?