Monster without a Name (Levi x Reader)

What happens when (f/n) (l/n), a devoted Scout, is suddenly transferred to the MP's and tasked with solving the most high-profile crime ever to strike the Walls? It's a daunting situation, to be sure - but she won't be alone. Accompanied by her lover, Captain Levi, and the enigmatic MP captain, Shinya Kogami, (f/n) wi...