The series revolves around a contest where 456 players, all of whom are in deep financial debt, risk their lives to play a series of deadly ..

The series revolves around a contest where 456 players, all of whom are in deep financial debt, risk their lives to play a series of deadly children's games for the chance to win a ₩45.6 billion prize. The title of the series draws from a similarly named Korean children's game.use the mouse to play the game