Oxygen Shortage

Mosquitoes, once insignificant, mutated into hunters and put humans on their prey list; the docile animals and birds in the past transformed into ferocious predators, entrenching themselves in every corner of the ruins. What's even more deadly is that the prying eyes of highly intelligent alien civilizations have quietly turned to this scarred planet. Resources are depleted and powerful enemies are around. Han Ling's scavenger team, a group of scavengers struggling at the bottom, without advanced weapons or powerful abilities, are playing games with the God of Death.