Hundreds of years ago, terrifying creatures that looked like humans emerged. These mindless, towering giants, known as Titans, posed an existential threat because they hunted whatever humans they could find to satisfy what seemed like an endless hunger. Unable to fight them effectively, humanity was driven to seal itself behind massive walls, surrounding what might well be the last safe place left for people on Earth. In the present day, life inside the walls has settled into peace, as the people have not encountered Titans for many years. Eren Yeager, Mikasa Ackerman, and Armin Arlert are three young children who long to see everything the world has to offer, having grown up hearing tales of the wonders beyond the walls. But when peace is abruptly broken by the appearance of a massive 60-meter Titan, they quickly realize just how harsh the world can be. On that day, Eren makes a vow to himself: he will do whatever is necessary to destroy every Titan on Earth, hoping that one day, humanity will once again be able to live outside the walls without fear.