Centuries ago, humanity was nearly wiped out by gigantic humanoid creatures called Titans. The survivors built three enormous concentric walls to protect themselves. Eren Yeager, Mikasa Ackerman, and Armin Arlert live peacefully inside Wall Maria until the day the Colossal Titan breaches the outer wall, unleashing chaos and revealing the horrifying truth about the world outside. Eren vows to exterminate every Titan and uncover the secrets hidden within the walls.