Attack on Titan takes place in a world where humans live inside huge walled cities to protect themselves from Titans—giant human-like creatures that eat people. The story begins when a massive Titan breaks through the outer wall, destroying Eren Yeager’s hometown and causing the death of his mother. Filled with anger, Eren joins the military along with his friends Mikasa and Armin. As they train to fight Titans, they discover shocking truths about the creatures, the walls, and even Eren himself. Eren learns he can transform into a Titan, turning him into a powerful but dangerous weapon. The mystery of where Titans come from grows deeper with every battle, and the characters face fear, loss, and survival at every step.
As the story continues, Eren and his friends uncover the dark history of their world. They learn that humans outside the walls still exist and that their own people have been trapped for generations. The biggest battles are not only against Titans but also against rival nations, political corruption, and hidden conspiracies. Eren’s desire for freedom begins to change into something darker, making everyone question whether he is still a hero or becoming the very monster he once feared. The series mixes action, mystery, and deep emotions, showing how far people will go to protect their freedom.