Bach sets his plan in motion to collect the ClassicaLoids and activate the Octave. When force fails to bring them together, Mitsuru's backup plan throws the city into chaos.
Music can recall memories, inspire action, soothe fevered minds and… summon robots? For the remixed classical maestros, or "classicaloids", a unique "musik" is their sword and shield with explosive notes that do way more than rouse emotions. Motz and Beet-san, who claim the names of timeless composers Mozart and Beethoven, are only the overture to the wacky concerto ready to awaken an unsuspecting modern town. What could go wrong?