Infinite flow in the apocalypse. In the near future after the global climate went out of control in 2530, a "big cold wave" with sustained low temperatures brought a real crisis.
The protagonist has been reborn eight times. Each time, he will be reborn 72 hours before the cold wave breaks out, retaining all memories, but cannot change the cruel law of "nearly loved ones must be sacrificed". Each time you fail, the enemies will be stronger next time and the timeline will be fine-tuned. See how the protagonist relies on wisdom to overcome the situation, break the rules, and save his loved ones.