The head of the European Central Bank, David Falcone, wants to fill the void left by Musou Saburou. To put an end to his ambitions, Miharu and Raizou form an alliance with the so-called Narcotics King of Naples. Their target? A powerful surveillance system - and they’ll have to fight through a fortress of foes to shut it down!

On the battlefield, Miharu is reunited with her old mentor Rem... but Raizou has his suspicions about their teacher-student relationship.