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Earth is under attack by other-dimensional threats known as Nova, and only the Pandora – girls with special implants that grant them enhanced physical abilities – can battle against them to protect the planet. The military academy Genetics helps train the Pandora, who must choose a younger boy known as a Limiter to assist them in combat. Bridgette L Sattelizer, known to her peers as 'Untouchable', is at the top of her class and lets no one near her – that is, until new student Kazuya Aoi falls into her breasts one day...
The above is a preliminary synopsis that will be updated once more episodes of the anime have been released.
The story is set at a private school that brings together “Saviors” – students who have awakened memories of their past lives as Shirogane or Kuroma. Shirogane use weapons gleaned with Puraana from their bodies to fight enemies, while Kuroma use magic by manipulating Maana to banish their foes. Moroha Haimura has just enrolled into the private school and is the first Savior in history who has awakened memories of being both a Shirogane and Kuroma.