Traveling to the End of the World a Year Later, I Called the Police

When Li Yan woke up, he found his home in a mess and thought he had been burglarized. So he decisively called the police. As a result, he saw cars colliding with each other on the street, and zombies wandering around... He was horrified to find that he had actually traveled to the doomsday world a year later. But how could carbon-based organisms like zombies destroy civilization? So, with the help of the authorities, Li Yan launched an investigation into this doomsday world.