When 14-year-old Y/N accidentally glitches into a Slytherin group chat, she’s ripped from her world and dropped directly at the feet of Lord Voldemort. As a Muggle who has read every Harry Potter book, she holds the ultimate power: Meta-Knowledge. Named the "Heir of Secrets," she is now the most protected person in Malfoy Manor. While the Slytherin squad is forced to be her bodyguards, Y/N is playing a dangerous game. She knows everyone’s secrets, their fates, and how the war ends. But she’s not here to save the world—she’s here to see what happens when the villains win. Armed with the Butterfly Effect, she's rewriting the story, one spoiler at a time.