Spy Classroom, Vol. 11 (light novel): Monika's Thin Veneer

Lamplight’s battle against world-class counterintelligence agent Nike has ended in disaster for them and their goal of starting a revolution in the Lylat Kingdom, with one member of the team now in custody. It’s unclear whether or not their teammates are safe, but the mission can’t end until the revolution is complete. Erna and her allies need serious backup, and they dedicate themselves to tracking down the mysterious LWS Troupe. But the loss to this invincible foe eats away at Erna’s resolve, and the path before her seems shrouded in darkness. But as despair closes in from all sides, Lamplight’s powerhouse makes her move.