With the humans once again becoming powerful and their population booming, they have no time to wait for thousands of years to grow the population of dragons or the long-lived races as a whole.
Thus, the God of Dragons and the other gods who created the long-lived races, made a deal once again to help the primordial dragons regain their emotions and fall in love.
It was then that the Oracle system was created.
Through the Oracle system, once a prophecy was issued by the gods, one of the dragons would head to the human realm to find his mate.
Other long-lived races, especially the elves who also lost most of their original population, would go with the said dragon to also find their spouses among the human race.
Human pregnancy and growth were so much shorter. It was exactly what the long-lived races needed to raise their population.
