故事以只有女性能使用的世界最強兵器「Infinite Stratos（IS）」為中心，在女尊男卑的世界中，主角「織斑一夏」雖然身為男生卻能夠操縱 IS，為此他被強制進入培育 IS 操縱者的學校「IS 學園」，周圍理所當然也都是女性，而女生們也對這位「世上唯一能夠使用 IS 的男性」感到興趣，就此展開了許多趣味橫生的學校生活。
Paris, the late 1960s. Madame Claude is at the head of a flourishing business dedicated to prostitution that gives her power over both the french political and criminal worlds. But the end of her empire is closer than she thinks.
In the autumn of 2014, in the ATO zone, an intelligence group headed by experienced captain Anton Sayenko (called by nickname "Banderas") tries to prevent sabotage and neutralize the Russian saboteur.
