Y/N spent years obsessively scripting her dream reality, memorizing every detail about Regulus Black and planning exactly how she'd save his life. The only problem? The second she successfully shifts to Hogwarts and actually sees him, she completely panics, runs away, and accidentally makes herself the weird girl who stares at Regulus Black like she's seen a ghost. Now she's trying to survive Slytherin, hide the fact that she knows the future, stop Regulus from marching toward his tragic fate, and somehow convince him she's normal. Unfortunately, Regulus has become very interested in figuring out why she keeps looking at him like she knows something he doesn't.