Escape from the Heavens

System: To leave this world, the host must obtain enough activity points... Yang Yan: After leaving this world, can I return to the original world? System: Guess... Yang Yan: (rolls eyes) N years later, Yang Yan, who has traveled through N worlds in the heavens, is getting stronger and stronger, creating miracles one after another. But he just wants to go back. Will the next world be the original one?