Ten thousand years ago, the Ancient Martial Continent was rocked by unprecedented upheaval. The Blood Lord, a strange being, slaughtered wantonly, bringing fear and bloodlust wherever he went. Countless commoners and martial artists fell to his hand. In the end, the eight ancient emperors joined forces to destroy him, but the price was devastating: the Thunder Domain was destroyed, and all eight emperors perished. Only then did peace return to the Ancient Martial Continent. But the eight emperors knew that the Blood Lord's wicked smile before his death meant he had not truly perished...