The humanity surrounded by a cage called walls, a 50m wall surrounded them, and protected them from the outer world. But, their imagination drives them crazy, and leads them to a new technology to fly over the wall, called 3dmg. A horror reminder of humanity happened in front of Wall, Maria, one of the walls that surrounded them. A colossal titan appeared! Will humanity do something? Welcome to the world!
The Trost District is a town located on the south edge of Wall Rose. Because Trost is the town closest to the breach in Wall Maria, it is the town that most frequently comes under attack from Titans.