At the time of Emperor Hanz, there is a battle between Xarlush a hell monsters and earth destroyers and humans, King Hanz was just a lowly human but was blessed by the heavens with strength to kill Yuzu the lord of demons, he succeeded but was cursed before Yuzu died

each generation a prince is born with immortal blood who has the ability to impregnate a woman with is child namely a Catastrophe Prince of Bloodlust demon child