Attack On Titan: The Reaper(discontinued)

So here's another aot fanfiction, I just got bored so I made another one!

Warning: there may be spoilers from the manga or anime and swearng.

Aya (she does not have a last name) is from the underground where she grew up with Farlan, Isabel and Levi. They then disappear which then Aya was alone and had to survive on her own. She then become the dangerous and famous thug and assassin that everyone named her as the Reaper as she has red eyes that glows and dress in black. After years later, Erwin recruited her to join the military. What she didn't know is that Levi is still alive and is in the survey corps. Will they be reunited finally?