In a world where games decide everything--even national borders--a genius brother-sister duo aim to put their gamesmanship to the test...to save humanity!



At the end of the eternal Great War, theworld where everything is decided by games, "Disboard," is born as the means toan end are changed from violence and force to games and wagers. But winnersstill trample losers, and the victims pile up. A young shrine maiden laughs athow nothing has changed. As the gamer siblings Sora and Shiro play a dice gamewhere the number of dice you have is determined by your age, everyone seems tobe against the pair. Will they survive, or will they lose the game--and theirlives?