Invaders of the Rokujouma!? Volume 46 by Takehaya

The resurrection of Maxfern draws Forthorthe ever closer to war. Before the battle begins, the enemy hopes to strip the Blue Knight of his power by going after the brains behind him—Kiriha, Ruth, and Clan—and shooting the spaceship they’re on! But as the emergency sends Koutarou into panic, he receives a message: “Veltlion if you are watching this, I imagine you’re in the middle of an uproar.”

Just what kind of plan have the Blue Knight’s lovely confidants thought up?! The three girls behind the scenes lead the enemy by the nose as volume 46 shines with trickery!