Shingeki no Kyojin

Humanity faces near extinction due to the presence of mysterious, humanoid giants called Titans, whose origins and motives remain unknown. These creatures, seemingly without intelligence, have been destroying human populations for years. Survivors have taken refuge within a massive city protected by three towering walls, standing fifty meters high, in an effort to remain safe. However, the arrival of an abnormally large Titan threatens to upend this fragile existence.