Spy Classroom manga volume 1 features story by Takemachi and art by SeuKaname and Tomari.

The golden age of the military has passed, and war is now carried out by spies. Klaus, an agent with a perfect record but a difficult personality, has formed a special team to carry out an “impossible” mission with a 90% failure rate. Problem is…the ones he's chosen are a bunch of pretty girls with no experience!?