In an imaginary historical time and space, the earth is still in the stage of primitive society. During this period, human civilization had just begun, science and technology was extremely backward, and living conditions were extremely difficult. Tribes are the main form of social organization. Each tribe is scattered in different regions and develops independently. Communication is limited and conflicts often occur.
The natural environment is harsh and dangerous. The earth is covered with dense jungles, vast wilderness, deep canyons and icy lakes. In these natural environments, there exist a large number of ferocious beasts, such as giant bears, tigers, poisonous snakes, etc., Which are always threatening human survival.
The most unique thing is that there are various dragons with different shapes and powerful abilities in this world. Dragons inhabit every corner of the world, in mountains, deep valleys, oceans, etc. Different types of dragons have different appearances and abilities. For example, some dragons are huge and powerful; some dragons can spit out elemental powers such as fire, ice, or thunder; and some dragons have special abilities such as flying and invisibility. However, primitive humans' understanding of dragons was still very limited at this time. They only regarded them as terrifying beasts and did not develop more value of dragons.
