Spy Classroom, Vol. 5 (light novel): Fool Erna Once

LAMPLIGHT’S GREATEST THREAT YET IS…THEIR OLD SCHOOLMATES?
The girls of Lamplight may have all washed out of their training at the spy academies, but under their leader, Klaus, they’ve managed to take on Impossible Missions with indisputable success. However, they still have a lot to learn, and in the field, there’s no room for error. To add to the pressure, team Avian, consisting of the best spies from the academies, is in need of a leader—and they’ve got their sights set on Klaus. Is this the end for Lamplight?