Su Lingyun, the favored son of heaven, became a trainee time policeman. He met Pan Lili during the mission, and the two traveled across the heavens to prevent the villain from disrupting time and space. Su Lingyun has the ability to go back in time, once a day, for ten minutes at a time, which helps him carry out his mission. They grew up slowly in the time police system and were promoted from trainees. But when he discovers the shocking truth about the big boss, Su Lingyun's faith collapses, but he will eventually rebuild his faith and continue to fight in the world.
