Wings of Freedom (Levi x Reader x Erwin)(Lemon/Smut)

Alright. I've already written one AoT/SnK fanfic, so you know how it goes. I do NOT own Attack on Titan! You are 14. Eren's older sister. Your father ignores you and pays more attention to Eren and Mikasa. Once day, y/n chooses to run away. She runs into a blonde man with strange eyebrows. She joins the Scout regimen...