Spy Classroom manga volume 3 features story by Takemachi and art by SeuKaname and Tomari.

The Impossible Mission begins at last! Codenames Flower Garden, Pandemonium, Daughter Dearest, Dreamspeaker, Glint, Meadow, Forgetter, and Fool all have their own goals, and each is prepared to work from the shadows to see it done. Can they come together and succeed, or have they been set up to fail?