The Consequences of Magic Unknown

Hermione returns to Hogwarts after the war for her 7th year. As Head Girl she catches Draco threatening other students with magic and gives him detention, with her as his detention supervisor. Will the alone time breed new understanding between them, or possibly affection? And what are the effects of the mysterious spell he cast? (slow burn Dramione, post-war, EWE, 8th year fic)