The latest in magical advancements is an enchantment that reveals the bearer’s romantic compatibility with another person. Effectively eliminating uncertainty from dating, the charm can tell you whether or not you’ve found The One with a precise, Hermione Granger-approved calculation of traits and preferences. It’s a foolproof method of predicting relationship happiness. It’s also, for Hermione, positively dreadful news. Dramione, post-war, soulmate AU.