The irregular at magic high school

Title

YOKOHAMA DISTURBANCE PART VI

Story

Operatives from the Great Asian Alliance have appeared all over Yokohama, and they've begun taking over the city. One of their targets is the Thesis Competition venue, but Tatsuya drives them out. Shizuku suggests obtaining intel from a terminal in the VIP conference room, and they learn that the enemy forces are far greater than they'd anticipated. Before evacuating, Tatsuya and his classmates try to destroy the data on the demo devices, only to be joined by Mayumi, Jumonji and the others. As they're debating what their next move should be, someone completely unexpected arrives on the scene...