Dragonians were also known as the Dragon Servants.
Dragonians represented the power of the Divine Dragon in the human world.
The purity in Dragonians' bloodline would determine the limitation of their strength and capability.
It was rare for Divine Dragons to develop into Dragonians except for those dragons with low purity bloodlines or the offspring of Divine Dragons and humans.
Dragonians were powerful. Those that attained great achievements in their cultivation could even transform from humans into dragons.
Of course, it was an arduous thing to do so.
The development of Dragonians and marine animals was somewhat similar. The only difference was the speed of their cultivations. Not only did the Dragonians cultivate slower than the marine animals, but they also had to cultivate according to their own physique conditions.
That is, they had to work step by step by cultivating their eight extraordinary meridians first.