At the end of the Meiji Restoration, a girl saint was crucified and burnt alive under persecution. A century later, Katori and six childhood friends are summoned to her world beyond nirvana, where they receive the Great Commission: Build a kingdom, and make disciples of all nations. At every midnight, each of them is randomly assigned a role from King/Queen, Noble, or Peasant. Since the lower ranks must obey those higher in the hierarchy, can they fight and defeat other nations to conquer the world—before infighting sparked by their own hidden desires tears them apart?