Start with a Retracement Point

My name is Su Yao, a scavenger in the rift area, a third-rate mercenary, and my life is worth less than dust. After dying once, I bound the system [Return Point] - returning to 24 hours ago after death. The first time I went back, I killed the mole who betrayed the entire team. The second time I turned back, I saved my companion who was supposed to die. The third time to roll back... The system said that the number of times has been used up. A hundred years after the Great Crack, the Milky Way was devastated. Time rifts swallow up civilization, and evolvers and monsters fight for the right to survive on the ruins. Some people believe in the law of the jungle and stuff living people into evolutionary experimental chambers. Someone is superior and uses the cracks as a harvesting tool. And I only have one thing to do: survive and take everyone with me to survive. Until I met that silver-haired girl, she said—— "Third Calibrator, you backtracked twice, right?" It turns out that my system has never been a cheat. It is a coordinate. And I was its chosen... Sacrifice.