Lol Zelda and Hermione sound like they'll have a few things in common. Zelda is also way more mature than she should be at 18 years old and has just come out of a tragic event that left her with a significant guilt complex. She's also super smart, particularly about things she can learn in books and especially statecraft and diplomacy. And she also came with her magic mcguffin from canon, although it won't be nearly as useful as Hermione's wand.