In the year 850, Eren Jeager's life is destroyed when the titans break through the walls, killing thousands, and rendering thousands more homeless. Eren escapes onto a barge with his friends Mikasa Ackerman and Armin Arlert. They are taken to Trost District, where one year later, they join the military. Two years afterwards, on an expedition, Mikasa and Armin are tragically eaten by titans in the forest of Giant Trees. Eren is left in depression, and only one man can get through to him.