Drachen In Anime (Haku)

Drachen lived happily under Draco, the first king. They discovered portals leading all over the universe. Drachen did not make all of the discoveries. The most important of all the portals was the time portal to Earth. Drachen used it constantly to choose riders.
Draco, sitting on his grand throne, had an idea. Since Drachen and humans are together so much, why not turn one into the other?
He sponsored a group of Drachen to conduct the experiments. These Drachen searched out humans, eho were then taken to the palace. The Drachen extracted a sample of DNA from each of the humans. Volunteers then...