Sleep is no longer rest, but the beginning of another battle.
When Shen Shuo, a hardworking man, fell asleep on the folding bed from exhaustion, he was dragged into a strange world called "Dream Game", which is the ocean of consciousness for all mankind. Only by passing the level can you be qualified to wake up; if you fail, you will be trapped in the nightmare forever.
Purpose: Even if you are not at fault, you are responsible, and fairness requires sharing.