That girl he rescued and this one don't even have the same hair color and people don't usually change that much physically after only one year either. That maid looks closer if anything, but still doesn't look quite right. In the first place, the one he saved was probably an imperial citizen who has star spirit affinity while ice witch over here seems like a member of the royal family from the spirit country. I'm sure the girl he freed will show up again, but this ain't her unless something's really screwy with the art or something.