As humans continue to demand from the environment, seawater is polluted, animals mutate, fresh water dries up, and new creatures called "mayhem" appear, leaving no grass growing anywhere they pass. Therefore, people can only survive by living in self-built cities. At the same time, due to the rapid development of science and technology, people gradually ignore and forget the traditional culture left by their ancestors. Since then, human beings can only move forward and cannot go back.
Purpose: Environmental protection