On November 1, 2120 AD, disaster struck the earth. The eternal rules of the world were easily torn to pieces. Animals, plants, electricity, gasoline, gunpowder, metals, elements and many other things mutated or even disappeared completely. The surface of the earth was split, ravines were crisscrossed, and the world was devastated.
Too many species became extinct, and those that survived gained great power. Among them, the evolved animals became the most dangerous to humans. They occupied most of the areas where humans originally lived, causing widespread death of humans. The surviving humans fearfully called them - dangerous species.
Everything in the world suddenly changed. After three years of mysterious sleep, Lu Yi woke up from the tomb. Unaware of all this, he stepped into the familiar but unfamiliar silent city...
