Fire Emblem: Fortune's Weave's deadline for getting new characters on your side might loom ominously on the horizon, but the game is more flexible than it lets on. There are a few points of no return, but only one of them is irreversible: the one at the start of Act 3. The game doesn't outright tell you that there's no going back, though it does ask you to be quite sure you want to proceed before moving on. There's a good reason for that. The second deadline is inflexible, and there's no going back afterward.