Three years ago, an otherworldly game called Black-and-White Chess suddenly descended upon Blue Star. National territories became chips on a chessboard, and the System selected people from across the world at random to serve as players.
Rules: If players lose a match in a supernatural dungeon, the corresponding administrative region in the real world is erased on the spot. Its mountains, rivers, cities, and all living things vanish into nothingness.
Over the past three years, nearly sixty percent of the world's land has been devoured by the rules of the chessboard. The territories of country after country have disappeared, and survivors are trapped on tiny scraps of land, short on supplies and gripped by fear. Despair has engulfed humanity, while mental breakdowns and suicides have surged year after year.
As if things weren't bad enough, a rare glitch occurred in the System when it selected players for a new match, dragging a human toddler into a terrifying game full of deadly traps.
The child is small, gentle, and well-behaved, always polite and kind to others. But in a dungeon world teeming with bloodthirsty monsters and cruel schemes, conventional survival logic says the child has no chance of making it out alive.
When all of humanity hears the news, they are plunged into utter despair. Human civilization, already on the brink, is cast beneath yet another looming shadow of annihilation.
The plot has ups and downs and the writing is smooth.