Sunset Shimmer ends up in Equestria and I don't mean the usual way through the portal, rather the way humans from fanfictions end up in Equestria. And without the portal transforming her, she's stuck as a human in Equestria.

And it gets even weirder. For some reason Sunset is unable to understand anypony and vice versa, Twilight doesn't have any wings and then there's the thing with meeting her former mentor again...

[T for safety reasons.]