The human race is at battle with extraterrestrial entities. The Genetics Military Academy educates Pandora fighters who are capable of carrying specialized weapons and armor in order to repel the invaders. Kazuya Aoi joins the academy as promised after his sister, a Genetics graduate, is killed in action. At the academy, he encounters Satellizer el Bridgette, also known as The Untouchable Queen for her superior performance and lonesome nature. She had never been defeated in battle simulation until Kazuya shows up, and as a result, she gradually changes.
