Beings from a different dimension have started a war with mankind. To counter this threat an academy called Genetics that trains warriors that can wield special weaponry and armor was formed. Kazuya Aoi decided to enroll in this school because of a promise with his sister, a former warrior who died in battle. There he meets Satellizer El Bridgette nicknamed "Contact Prohibition Queen" due to her solitary demeanor but also the top student of the academy whose battle simulation streak was undefeated until he came...and changed her.

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