Infinite Stratos 2: World Purge (2014)

Original title: IS: Infinite Stratos 2 - World Purge Hen

The students at the IS Academy are trained to become pilots for the Infinite Stratos weapon system. Dunois teases her by pointing out that this is probably due to Ichika's absence. He is presently helping out at the Centre of Research Kuramochi . Suddenly there is a power outage, the security generators do not activate, and the building closes the shutters, but there is no alarm. Chifuyu explains that as of now all the school's systems are inoperable, and probably have been hacked. No student seems to have been hurt, but regaining control has the utmost priority. So the girls are asked to connect with the IS Core Network , to restart the network. They encounter a program called World Purge that sends illusions to all the girls about their ideal fantasies. Meanwhile Tatenashi is tasked to hold off the incoming armed attack on the school.