A Whim

"I can't believe it... she wants to go outside... for that long?"
"There's no way you're going out there... not without me, of course."
"Let's go look for the shelter! Let's rebuild our home!"

Years ago, Emma remade the promise, and now the trio has grown up. All the children were sent to live in the human world with the exception of Emma's family. Now living peaceful lives, the trio was suddenly thrown off by a whim of Emma's.
To go and reclaim what is theirs.