Dark Shines (Levi x Reader)

ReaderxLevi.
(Y/N) comes home one day to find a stranger in her home, rummaging through her cabinets. Scared and confused she tries to confront this stranger. Little did she know that this stranger would be Levi, her favourite character from the Attack on Titan series.
She finds out later that Levi happened to have been reading a book in his universe in which the reader is a character of the story and it turns out that she is his favourite character in his book.

How will both react to finding out this mystery?
How will he return back home?
Will a relationship blossom as a product of their admiration of each other's characters?
Mostly fluff things.
Contains spoilers. So please do be cautious when reading.
(I'm not good with summaries but this is what I can produce to the best of my abilities.) P.S. only rated PG-13 because of swear words and things of that sort. Also I edit my chapters quite frequently as I am not always content with the way I write.