Infinite Stratos - S02

While Ichika Orimura heads off to visit Kuramochi Engineering's labs, an unknown enemy hacks into IS Academy's core and takes down its systems. To fight off the attack and fix the damage, his older sister Chifuyu calls in Ichika's harem: Houki Shinonono, Cecilia Alcott, Huang Lingyin, Laura Bodewig, and Charlotte Dunois. Together, they dive into virtual reality to face their enemies inside IS Academy's network. What the girls don't know is that a piece of malware called "World Purge" activates the moment they enter the digital world. The program traps them in fabricated realities, where each one lives out an ideal romantic version of her bond with Ichika. Once Ichika gets back to IS Academy, it's up to him to save the five girls and wake them from this virtual reality.