Everyone at Hogwarts says falling in love with Mattheo Riddle changed Y/N. She laughs more. She trusts easier. She doesn’t start fights she can’t finish anymore. For the first time, people believe the girl with the dangerous reputation has finally left her past behind. The only problem? She never did. When old secrets resurface and the people she loves are put in danger, Y/N falls back on the only thing she’s ever trusted: herself. Lies become weapons, loyalty outweighs morality, and the lines between right and wrong blur until no one—not even Mattheo—recognizes the girl standing before them. As friendships fracture and trust begins to crumble, Mattheo is left wondering when the girl he loved became someone so cold. Y/N has the answer. She didn’t. She warned him from the very beginning. He just never believed she’d always be the girl she said she was.