Don't Blame My English Blood For This American Heartache

Seraphine Malfoy had been raised in California by her Squib parents with no knowledge of her family's magical heritage, though she has received lessons from a local family. In the summer of 1984, when she's eighteen, she receives a letter from a woman claiming to be her aunt, explaining that the two of them are the last of the Malfoy line, and asking if she will come learn to be the new heir.

Introduced to Wizarding society as the heir to the Malfoy family, Sera enters a glittering world that's very different from the one she's always known. She takes to the role of heir easily, she doesn't struggle too much with the Hogwarts classes she's been given special permission to attend (despite her apparent inability to use magic with a wand without blowing anything up due to her only prior experience being with wandless magic), and she's perfectly fine with the Malfoy family's surprising lack of finances. She can even handle the balls her aunt seems to want her to attend and her new responsibilities. The only thing that throws her completely off is the appearance of Death Eater turned war hero Regulus Black, who, despite being ridiculously full of himself, is far too charming-and far too persistent-for her own good.

Regulus Black x OC