Delivery boy Chen Ye was accidentally "infected" with the ability to see the countdown to death above certain people's heads. When the countdown reaches zero, people will die. He can intervene in the countdown to change fate, but he will pay a price every time he saves someone (golden lines appear on the back of his hands, and his body is consumed faster). And his own countdown only has 72 hours left. Later, the existence of "embryos" was discovered, and a series of stories happened
