The end of the world is coming, and the order of the demon king is harvesting the lives of all beings. In this desperate darkness, one person breaks free from time and space, returns to the world before the collapse, and is determined to change the fate of the past. But as time goes by, he gradually discovers that the doomsday It's not that simple... (Book friend group: 662816185; V group 878261509, readers are welcome to join~)