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For years, Sora and his stepsister Shiro have hidden from reality, rarely leaving their home and unable to stand being separated. Online, however, they're famed for their gaming skills as the tag-team duo known as BLANK, and there's no challenge that they won't tackle. Then a chess match against a mysterious opponent known as Tet turns out to be the opening gambit in something much bigger than anyone on Earth could have ever imagined. Because this game is the ultimate competition, and the outcome determines the fates of not just the players, but of entire civilizations and species! Can two misfits who can barely handle their own lives rise to the occasion and save the human race? The competition is on as the battle begins in NO GAME, NO LIFE and prequel film NO GAME, NO LIFE ZERO!