The first fallen Ember King, to keep the Fire of Hope burning, sought people with the potential to be cast into the flames from all over the world.
This measure succeeded, and the Fire of Hope was not confined to the descendants of the four Fire Stealers.
But the curse of the Ancient Dragons began to take effect, and the Ember King was backfired by the power of the flame, turning into a monster neither human nor ghost, needing to steal more flame power to recover.
The other Ember Kings and humans naturally would not agree to such actions, thus the first Fire-Keeping War broke out, and the fallen Ember King and his kingdom were annihilated.
Although defunct, the fallen Ember King set a very bad precedent, and the subsequent Ember Kings also began to look for various ways to evade responsibility.
Researching Black Magic, biological modification experiments, summoning Abyss monsters, etc., brought great hidden dangers and calamities to the world.