Run Away

Two siblings who have been basically taking care and raising each other since they were smaller. Why? Because they're parents are always so busy with work and whatnot so they obviously don't have time to actually raise their own kid. They did hire a nanny but she doesn't even take care care of them at all. She's only there for the money. The two siblings decide to run away at a very young age. As cheesy as it sounds, that's when they're journey begins.