At the end of the 21st century, the earth where humans live has almost perished due to the abuse of resources. Today's earth is no longer the beautiful blue planet. The earth is smoky and barren. Viruses brought by pollution have caused some humans to become pathologically ill and become rampant zombies. The earth can no longer survive. United Nations scientists discovered a space-time wormhole at the last moment of humankind's demise, and opened the wormhole to take the remaining humans to jump in time and space. Unfortunately, the technology at that time was incomplete. The jump cabin exploded during the process, and only a few of them successfully jumped to parallel z-time and space.
Yu Ran jumped to Z time and space, gained abilities, met An Nian, and fell in love, but in the end, she was the only one.