On a train, everyone is pulled into a group called "The Devil's Game".
The group leader with the ID "Devil" seems to be omnipotent and controls everyone's destiny.
If they want to escape the control of the "devil", they must complete the task according to the devil's instructions and thus escape his control.
A young man named Su Chen received generous rewards for completing tasks again and again.
The step-by-step growth made his mind gradually mature from immature, and finally unveiled the mysterious veil of the devil.