"Attack on Titan" is a dark fantasy anime and manga series set in a world where humanity resides within enormous walled cities to protect themselves from gigantic humanoid creatures known as Titans. The story follows Eren Yeager, his adoptive sister Mikasa Ackerman, and their friend Armin Arlert as they join the military to fight against the Titans after their hometown is destroyed. As they progress, they uncover the mysteries surrounding the Titans, the walls, and the origins of their world. The narrative is marked by intense action sequences, political intrigue, and profound philosophical themes, exploring the consequences of war and the fragility of humanity in the face of overwhelming existential threats. With intricate character development and unexpected plot twists, "Attack on Titan" has become a critically acclaimed and emotionally charged saga.