Badlands Era: I Am an SSS-Level Disaster

[Apocalyptic urban wasteland+travel+superpower+killing monsters+not brainless] Human society has experienced disastrous nuclear wars one after another. Humanity has lost large areas of land due to radiation pollution, causing various mutation disasters and polluting organisms. Therefore, humans have built high defensive walls and retreated to the Sixth District. My name is Ran hope, and as soon as I traveled through time, I was at the scene of the murder. Who was I killed by? In order to collect the body of the cheap uncle who killed Peony, I swallowed a disaster pollutant. From then on, my story slowly unfolded. Is the system that everyone dreams of a cheating cheat or a huge conspiracy? Illuminati believers use their wives as mothers to lead alien species into the world. What kind of secrets are buried in the underground laboratory of Legend Biotechnology Company? Hush, don't move, SSS-level disaster pollutants are around you and me!