Everyone at Hogwarts knows Y/N and Mattheo Riddle can’t go a single day without arguing. Their rivalry is legendary, their duels are practically entertainment, and neither of them has ever been willing to back down. So when they agree to one final duel, no one thinks twice about watching. Until one spell goes too far. Now, the rivalry that once felt harmless is replaced with guilt, silence, and feelings neither of them ever meant to face. Because sometimes the hardest person to forgive… is yourself.