A group of desperate people who are in desperate need of money receive a mysterious invitation to join a game. In order to win a prize of 45.6 billion won, 456 contestants from different backgrounds are locked in a secret place to play the game. Each round of the game is a traditional game that Koreans would play as children, such as "one, two, three, wooden man", but the consequence of failing to pass the level is death. Who will be the final winner and what is the purpose of this game?