Faria and Eren investigate a town destroyed by Physis-infected monsters. A nearby town, Ulley Village, is attacked by monsters, as well, with only a young boy Nemo as the sole survivor. Nemo is surrounded by monsters until he is saved by Faria, who notices that Nemo is wearning the uniform of Granseed Academy. She takes him to the Granseed train and explains to him the story of the Seven Knights, legendary heroes who saved the world from the evil god Nestra...