A seemingly ordinary girl, Petunia Evans, suddenly finds her world upended when she recalls a past life as Lucy Charleston, an American university student obsessed with Harry Potter fanfiction. Now armed with foreknowledge of a magical world she was once told she'd never be part of, Petunia must navigate her new reality, protect her magical sister Lily, and rewrite her own infamous destiny.

Orphaned and alone, Anna Watson's quiet life ended in a sterile hospital room, her only comfort the magic of Harry Potter. But death was merely a new beginning. Reborn as Petunia Evans, Lily Potter's overlooked sister, Anna discovers a shocking twist: this Petunia has magic, and a mysterious System guiding her. Can she rewrite her destiny, protect those she loves, and defy the bitter future laid out in the books? Dive into a world where familiar characters find new paths, and the girl who was meant to despise magic might just become its greatest hope.