Kazuya Aoi enrolls at West Genetics, an academy that trains the genetically enhanced young women called Pandoras and the Limiters who fight beside them against the Nova, interdimensional invaders. He crosses paths with Satellizer el Bridget, a feared second-year nicknamed the Untouchable Queen for her undefeated combat record and the phobia that keeps everyone at arm's length. When Kazuya touches her without flinching, he asks to become her Limiter, drawing them both into the academy's brutal ranking duels.