Dragon lords

Dragon lords (竜王, ryū-ō, also ドラゴン・ロード, doragon rōdo), also called ancient dragon lords (エンシェント・ドラゴン・ロード, enshento doragon rōdo) are some of the oldest creatures in the world of Forcelia. During the War of the Gods, both the gods of light and the gods of darkness, summoned numerous dragon lords to fight on their behalf and destroy the gods of the opposing camp. Dragon lords can breath fire, and with their flames they destroyed many gods. After all the gods were destroyed, the dragon lords turned on each other until only one dragon lord remained. The last dragon lord was deeply wounded and has remained in hibernation ever since. Because of their destructive power the dragon lords are also referred to as "god-killing dragon lords" (神殺しの竜王, kami-goroshi no ryū-ō).

During the War of the Gods, some dragon lords pursued a group of gods who had remained neutral and tried to flee from the war. These neutral gods eventually reached the continent of Crystania, where they discarded their original bodies and sealed their souls into the bodies of ordinary animals, hoping to blend in with nature and escape the dragon lords. One dragon lord, said to have a hundred eyes, saw through their forms. To prevent the dragon lord from spreading this information, the animal god Urus managed to seal the dragon lord into a crystal. Thousands of years later the dragon lord still resides on Crystania, sealed inside the crystal guarded by Urus.

In the Sword World novel "The Island of the Dead God" a god-killing dragon is summoned to deal with the evil god Mireef, who is being resurrected. In this novel, Mireef was once defeated by a god-killing dragon under the control of Kastuulians at the time. Centuries later, Kastuulian descendants, who know of Mireef's defeat at the hands of the dragon, thus summon the dragon once more to defeat the resurrected Mireef. Note that in this novel the dragon is referred to as god-killing dragon (神殺しの竜, kami-goroshi no ryū), not dragon lord.