After Y/N dies during a dangerous divination ritual in her final year at Hogwarts, Draco Malfoy becomes obsessed with one impossible idea: going back and saving her. Using forbidden temporal magic, Draco begins slipping backward through time to moments before her death, desperate to change the future before it destroys them both. But the more he rewrites fate, the more unstable everything becomes — and Y/N slowly realizes Draco is not acting like someone afraid of losing her. He is acting like someone who already did.