Our protagonist, Rinkong (of course not the girl Tracer from Watch), was killed when his phone exploded while playing with it. He traveled through time (a clichéd beginning). Originally, Rinkong thought that the place he traveled to was an ordinary world. However, it took a few days to realize that this was the end of the world, and our Rinkong was also avoiding zombies. In the process, like Xiaoban, he also discovered an artifact, the Omnitrix that can transform into an alien hero. The most important thing is that this Omnitrix has no cooling time. In this way, our protagonist, Riakong, takes the Omnitrix to walk around in the apocalypse...