"Subsequent to the eternal Great War, Disboard--the world where everything is decided by games and wagers rather than violence--is born. But winners still trample losers, and the victims pile up. A young shrine maiden laughs at how nothing has changed... Sora and Shiro agree to a dice game where the number of dice you have is determined by your age, but in a contest where all the players are pitted against one another and death hangs in the balance, will the sibling gamers survive or lose everything--including their lives℃"--Page 4 of cover.