Spy Classroom Novel Volume 8 was written by Takemachi with illustrations by Tomari.

Lamplight has finally found the mole in the CIM, but the price they paid is far too steep. The team is in shambles, and the entirety of the blame has been placed on Monika, whose whereabouts remain unknown. As despair looms, the weakest member of Lamplight makes her stand and begins the counterattack.