In Slytherin, Y/N and Theodore Nott are known for only one thing: their constant, effortless hatred for each other. Every glance is a challenge, every conversation a battle, and every shared space a disaster waiting to happen. Neither of them backs down, and neither of them has any intention of changing that—especially not in front of their chaotic friend group made up of Draco Malfoy, Pansy Parkinson, Blaise Zabini, Lorenzo Berkshire, Mattheo Riddle, and the Greengrass sisters. But Hogwarts has a way of forcing people together. When circumstances push Y/N and Theodore into unavoidable proximity, their carefully built animosity starts to crack. Small moments slip through the tension—glances that linger too long, words that cut a little less sharply than before, and silences that feel heavier than they should. Still, neither of them is willing to be the first to admit anything has changed. Because in a world where pride means everything, falling for the person you hate most might be the most dangerous thing of all.