Change (AOT x reader)

(Y/N) woke up and found herself in a different place,a different time and more importantly a different universe. She tries to understand the reasoning behind her appearance in the walls. While helping the commanding officers to understand and to get close to the titans using her intelligence...

This story has spoilers from the manga so read at your own risk...YOU HAVE BEENN WAAAARNED😬😬😬😄