The System World is a famous game played by nearly billion people worldwide. Clint Hein who strives to work in spite of poverty was forced to play because he could hear and listen to the news of the game where many had become rich here. But he doesn't know how to do it. That is why he simply continues to play, along with work to provide for the family while the whole body and the mind are in the work and play.

However, the whole world does not know that System World is the only way to survive the invasion.