Harry's Year of Conquest

Post War, Hogwarts is suffused with Dark Magic and it needs a series of Rituals to remove it. What will the effect of the Rituals have on Harry and the Witches chose to help him? This is a sort-of sequel to "Hermione's Summer of Conquest" I say sort-of, because there are a few differences. Specifically, Hermione accepted Harry's offer to become Lady Potter, and there was no Remus