A new type of "danger-tainment" variety show, where entertainers known for their love of automobiles take the wheel of "battle cars" (sentosha) to compete in various games, races and contests.

Bullied for wanting to be an idol, Kenji finds belonging in a cabaret and help from a trailblazing doctor, emerging onstage as her true self, Ai Haruna.

Amidst the Boshin War's brutal conflicts, a motley squad of criminals and samurai undertakes a desperate defense of a fortress, their stand triggered by clashing interests of the Shibata clan, the shogunate, and the new government.