Attack on Titan is a dark fantasy post-apocalyptic manga series created by Hajime Isayama, which was published from 2009 to 2021. It follows a boy named Eren Jaeger, who lives in a world where humanity is forced to live in walls in an attempt to stay safe from giant man eating monsters known as Titans. Eren vows to destroy all of the Titans after an incident in his childhood, so the series follows him as he joins the military to try and learn how to defeat the Titans.