Attack on Titan, known as Shingeki no Kyojin in Japan, is a critically acclaimed anime and manga series created by Hajime Isayama. The manga was first published in 2009, and the anime adaptation premiered in 2013. The story is set in a world where humanity is on the brink of extinction due to giant humanoid creatures known as Titans that devour humans. The main character, Eren Yeager, along with his friends Mikasa Ackerman and Armin Arlert, join the military to fight against the Titans after their hometown is destroyed. The series explores themes of survival, freedom, and the complexities of human nature.