Fire Emblem: Fortune's Weave works just fine as a standalone game you can enjoy without any knowledge of Three Houses. But it's also crammed with details and connections that tie the two closely together, including some pretty big revelations that expand on some of Three Houses' more vague worldbuilding elements. Nintendo's done little to highlight these connections, to the point where quite a few people still aren't sure if Fortune's Weave is a prequel or sequel. So we've listed some of the bigger connections below.