I Shall Purify this Female World

After Y/n got killed by Truck-kun, he gets reincarnated by a god in a Matriarchy world, due to the invention of the Infinite Stratos (IS). With Y/n wanting to be the best of the best, he will work his way through the IS Academy, and become the best IS pilot, showing that men are capable in this female-driven world. But he does become a little cocky, and slowly gained a tiny harem during the process.