Rose is on a simple mission. Find the bastard that took their mother and find out what happened to her.
They've got the tools: a Devil Fruit that turns the world into a game interface, space to grow, and the ability to get stronger with every other user they meet. They've got knowledge of how canon is supposed to go. They even have some high-level skills before the trip starts! (With some crucial drawbacks.)
It's the Straw Hats - and a blend of preconceived notions and pre-existing...