Attack on Titan

107 years ago (743 AD), the natural enemy of humans, the giant, suddenly appeared in the world. Faced with a survival crisis, the remaining humans fled to a place and built three huge walls. People enjoyed peace in this isolated environment for over a hundred years, until Eren Jaeger was ten years old when a 60 meter tall "super giant" suddenly appeared, destroying the city gate with overwhelming force and disappearing instantly. The ferocious giants rushed into the wall in groups to prey on humans.

Eren witnessed people and his own mother being devoured by giants with his own eyes, and with an indescribable hatred and hatred towards giants, he vowed to kill all giants. Two years after the collapse of the city wall, Allen joined the 104th Training Corps to learn techniques for fighting against giants. During his three years in the training corps, Eren had an unparalleled level of mental strength among the soldiers trained during the same period. Eren, who bravely challenged the giants even after witnessing hell with his own eyes, successfully joined the long-awaited Investigation Corps.

Just as he was dreaming of going outside the wall, a super giant that was destroying the wall appeared.