The elves have descended, the city has turned into wasteland, and humans have entered the era of "base cities", relying on "trainers" to survive. This is a phenomenon known to the whole world. The protagonist Lu Chen, on the surface, is an E-class trainer in Donghai Base City who fishes all day long. In fact, he is the ultimate weapon that the Dragon Kingdom has secretly cultivated for 20 years, codenamed "Creation"
