Norn9: Norn+Nonet

In a dystopian time, "The World" is a force for world peace. Although its location is unknown, it has been keeping watch over Earth for so long that war is now only a myth. Nine ability users must be delivered to The World by the airship Norn. After gathering the final individual, Norn departs. Eight men and three women are on board, including Koharu, who hates using her destructive power and has finally found companionship; Mikoto Kuga, who was born into a noble family and uses her barrier skill to shield the Norn and those it is carrying; and Nanami Shiranui, whose ability only causes pain and who wants to perish for a previous sin she committed. Suspicions start to grow among the passengers as they discover there are too many individuals on board as they travel. The ship is attacked by an unidentified attacker who is determined to stop the Norn's progress at any costs as they strive to figure out who has sneaked onboard. Questions like, "Why were they given powers, and what must they do once they reach The World?" arise from this confusion.