Buddy Complex

Aoba, a typical high school student, has his life irrevocably changed on the first day back from summer break. He is attacked by a giant robot, forcing him to flee through the city. Suddenly, his classmate Hina appears in her own robot and rescues him. Before disappearing, she cryptically tells him that "Dio is waiting for you." This encounter marks the beginning of Aoba's new life as a pilot. He is now a member of the Free Treaty Alliance, fighting against the Great Zogiria Republic. The series follows Aoba as he navigates this sudden and dangerous new reality, grappling with the mysteries surrounding his involvement in the ongoing conflict.