After Tomorrow: Wandering Twilight

Four years ago, a biological company named Heimdall released a highly contagious and lethal virus. In just one year, it swept across the entire Western Continent Plains. 90% Of the world's humans were infected by the virus and turned into zombies seeking the living. The surviving humans did not choose to wait for death. They set up major shelters in various places. The war has not stopped since it was ignited. This war between the living and the living dead is also called the "Infection War". Humans have been fighting against the zombie tide for four years until now. I am Shi Jiuming, an ordinary junior high school student. Where will I go in this end of the world?