Centuries ago, lived a beast that ruled the top of the food chain, king of the animal kingdom, and feared by all creatures. Dragons were mytical beasts that ruled the land from the mountains, plains, and seas. Mytical beasts that were a rare sight for most, but were the dominant creatures in the realm. Humans would see these creatures as worthy opponents to test their strength, many attempting to defeat them, few successful. But those who were, were often met with calamity following their victory. The blood of a dragon on your hands, marked you as an enemy for the rest of time. Your village would most likely be the first to go, as dragons seeking justice and vengeance would hunt you down.
However, there is a different lifestyle some towns and villages had with dragons. Coexistence. Built at the base of mountains, or small costal city's, would often treat dragons that lived nearby as gods or guardians. In some rare cases. A dragon would even give its life to protect humans from sever calamity such as volcanos and tsunamis. In such cases the soul of the dragon would attach itself to a human it was close to, and pass down for generations. It is said that these individuals were granted amazing power and abilities, similar in likeness, if not identical to that of a dragon.
But with every good thing, Evil follows. Dark mages eventually found ways to forcefully steal a dragons soul to obtain power and in some reported cases, evil dragons would force their twisted souls into humans, effectively taking over their body, to ensure their longevity of life. Events such as this began to cause mistrust amongst the dragons, and civil war ensued, and the dragons slowly began to wipe themselves from existence.