A global alien beast catastrophe occurred, and humans contracted alien beasts to become beast masters. Only Xie Lin wakes up to be the most useless "breeder" and can only urinate after being laughed at. When the S-class beasts besieged the city and everyone was in despair, Xie Lin slowly took out the system: [Shan Hai Jing Breeder]! He casually fed a bone to a stray dog on the roadside, and the next second, the dog turned into a glutton and swallowed half of the beast in one gulp! While other people's phoenixes are still little chickens, their redbirds have burned the sky and boiled the sea. The most useless profession? No, he is the only breeder of the Classic of Mountains and Seas, leading an army of alien beasts to crush the world! PS: Taotie is hungry again, who can give me something to eat?