A person is sent into an Equestrian universe as a human named 'Baked Apple', but this new world is not like Equestria or EqG. It's inhabited by human versions of the ponies in a world not too dissimilar from the visitor's own.

The drawing of Baked Apple was made by lumiere-angel-90.

It's a crossover because the human counterparts of characters from other MLP universes live in this story's universe.