A great secret that mankind has hidden within the walls for a long time――.
The Survey Corps are one step closer to the truth, but the current monarchy stigmatizes them as traitors.
However, the human race is not just livestock to be kept.
Erwin Smith's persistence in pursuing the truth influences the head of the Corps, and finally a coup d'etat against the current regime breaks out.
The false king who had been deceiving the people stepped down, and Historia Reiss, who was of true royal blood, ascended to the throne. Under the heroic queen, who had slayed Titans herself, humanity was about to enter a new era.
An anti-Titan weapon was born from Eren Yeager's ability to harden.
Humanity, steadily preparing to rebel, decides to carry out the long-awaited mission to retake Wall Maria.
Humanity and the Titans are engaged in a final battle for their respective survival. What will Eren and humanity truly gain from this?