Attack On Titan
In short
A Japanese manga and anime franchise created by Hajime Isayama about humanity fighting giant, man-eating humanoids called Titans. The story follows Eren Yeager as he seeks to reclaim freedom from the creatures living outside massive protective walls.
In plain words
People live inside huge walls to stay safe from giant monsters. The main character joins the military to fight these monsters after his home is destroyed. It is a dark story about survival and war.
A simple example
Eren Yeager uses specialised gear to swing through the air and strike the weak spots on a Titan's neck to defeat it.
Why it matters
It became a global phenomenon that changed how many people view dark fantasy storytelling. The series is famous for its complex plot twists and intense emotional themes.
Easy to mix up
Do not confuse it with generic monster movies; the story is specifically focused on the political and psychological struggle of the humans involved.