A certain college student, Xu You, fell asleep because he was too tired to write a paper in the middle of the night. The next day, I found myself in a different world. Due to world pollution and biological mutation, various biological mutations began to wreak havoc on the city, and the world fell into crisis for a while... Xu You's time was about three or four years after the biological mutation... During his exploration, he met several mysterious partners...
Purpose: World pollution creates mutation