Humanity build up the three walls in order to protect themselves from the electronic human sized Titans who's going to end up the human race, but with the help of all the Great Scientists they all make out some more ways to prevent the war by creating a lot of Military Robotic Equipments, Androids, Robots and any other high technical things
The new great youth Recon members started to work on their first official project called "Code 66" lead by Levi Ackerman along with his unit and under the command of the Military Government to use it as their finest weapon to save the mankind
But what if their finest piece of art was just an ordinary normal girl who got accidentally burned out at the large fire explosion and send out to the Recon for their human material test project
She forced her self to remember anything about her past, but it seems like her past was blanker than paper
Are her memories has to do it with Levi?
Or can her old past could help the two of them and for the Mankind