Hidden City

Sixty-five million years ago, an asteroid hit the earth, causing the dinosaurs to disappear, but they were not extinct. Some of them accidentally came to a magical underground world and settled here. After several years, some dinosaurs evolved into scale-armored lizard-men and built a city in the underground world. Due to the population growth in the lizardfolk cities, supplies were in short supply. In order to obtain enough food and resources, some lizardmen used their unique ability to change their appearance to transform into ordinary people and come to human society. They used business and other methods to accumulate wealth, and then exchanged it for materials and transported them back to the underground city. In the process, many wonderful and bizarre stories happened, including elements of science fiction, adventure, love, battle and other elements.