It’s a game of life and death between the gamer siblings and a god!
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?