Yu Ling: Did the Little Dragon Girl Hatch at the Beginning?

Traveling to a world where all people control spirits There are hundreds of races in this world, and the human race is just one of them. When humans are 16 years old, they can awaken to the spirit space and contract with monsters or demi-humans. Qin Feng came to this parallel world because of a wrong step. Fortunately, he got an egg with SSS level potential and hatched a dragon that has been extinct since the mythical era. Later, it was discovered that there would be a 300-year blank period at the turn of every era. During this blank period, countless races disappeared. In order to figure out how he came to this world and solve the unsolved mysteries of tens of thousands of years, the story of Qin Feng and the demi-human girls began.