Season 1

In a high-stakes battle royale to settle the standings among the second-year Pandoras, Satellizer el Bridget, the Untouchable Queen, holds the top rank. During class, physics teacher and training instructor Yumi Kim recounts her experiences as a Pandora in the recent war against the Nova, where a confrontation with a formidable Nova was ultimately won thanks to the sacrifice of her squadmate, Kazuha Aoi. Meanwhile, Kazuha's brother, Kazuya, is transported to the West Genetic Academy by student president Chiffon Fairchild and is given a rundown about the nature of Pandoras and Limiters. Kazuya arrives while Satellizer is in a battle against the second-ranked Pandora, Ganessa Roland; Kazuya mistakes Satellizer for his late sister and hugs her, provoking an embarrassing reaction from her and leaving her open to attack.