To defend their kingdom against a sudden invasion, a mighty general returns to the battlefield alongside a war orphan, now grown up, who dreams of glory.

Seeking change, Mitsuhashi and Ito attempt to reinvent themselves at their new high school as fearless bad boys, catching the ire of campus thugs.

Eren leaves to restore a break in the wall destroyed by a Titan. He comes under attack by the Titans and is cornered. Shikishima comes to his aid. The titans never stops attacking. Eren is now injured and tries to protect Armin, but is swallowed by a titan. A Titan with black hair appears and begins to expel the other titans.

100 years ago, titans suddenly appeared on Earth. Soon, human civilization veered on collapse due to the titans. Humans then built a giant wall to defend themselves. Within the giant walls, humans lived in peace, but, 100 years later, the giant wall is broken.