Shingeki no Jiyu

Before the fall of Shinganshina and Wall Maria.

To advance against the Titans, humanity's strongest began a program within the Survey Corps in response to their lagging numbers and counterattack the memory of Marley. And thus, two unlikely people of different nationalities unite to become the last defence against the threat to the building of the Fourth Wall, Hana. Within Wall Hana is humanity's largest agricultural hub, so, those who come forward to the Corps must give their hearts to save the walls, and their freedom.