Yuuji is arrested for terrorism despite being framed. Ichigaya plans to use him against Oslo's terrorist group with a devastating weapon while the Mihama girls and a mysterious figure aim to stop them.

Kazami Yuuji is arrested under suspicion for terrorism. A video showing apparently concrete proof that Yuuji committed these acts, and he is held in custody by Ichigaya. Ichigaya knows full well that Yuuji didn't commit the crimes he has been accused of. But he did fail to assassinate Heath Oslo, who is the leader of the terrorist organization with an extremely devastating weapon in their possession. In fact, Ichigaya have their own plans for Yuuji, but all may not be lost for him. The girls of the Mihama Academy are not about to let Yuuji be used for political gain, and neither may the mysterious new figure which appears before them.