Western Zemuria, CrossBell State. Nacht Weiss, a boy who's longeed to become a bracer for much of his life, encounters on the day of his certification exam Chloe Barnett, a girl sporting black hair, a rare sight in those parts. Much Like Nacht, Chloe has has come to take the same exam as well, albeit from the Liberl Kingdom. As they both descend underneath Crossbell City together to the Geofront to take their examination, they catch word of a "Special Support Division" from Michelle, a secretary working as part of a Bracer outpost. And thus begins the adventures of the unwieldy pair of Nacht and Chloe.