Lord of Death had initially been nothing more than an ordinary genius Warlock. Back then, his Soul Aptitude had only been upper fifth grade, merely better than that of Lord of Taboos, whose aptitude had been the worst. He had a childhood sweetheart for a wife, and the first half of his life had been exceedingly happy.
When Lord of Death advanced to become a Starry Sky Warlock, his wife had been killed by a powerful enemy while protecting him. Her soul had also been struck by a vicious spell and shattered into pieces.
Lord of Death had embarked upon the path of the strongest Warlock solely to resurrect his wife. Only after countless battles had he finally climbed to the pinnacle, advanced into a Warlock Emperor, and become Invincible Under the Heavens.
Yet even after reaching the rank of Warlock Emperor, Lord of Death had still been unable to resurrect his wife. Her soul had been shattered, and part of it had fallen into the River Styx, where it had been washed into a blank sheet of paper.
If Lord of Death had possessed the power of a Warlock Emperor on the day his wife fell, or even merely Cosmic Sea Level power, he could have resurrected her directly. But as time passed, the difficulty of resurrecting his wife had only grown greater and greater.
Once the soul of an intelligent lifeform passed through the cleansing of the River Styx, it would be washed into a blank sheet of paper, with all its memories directly erased.
To resurrect an intelligent lifeform that had undergone the cleansing of the River Styx, one had to advance into Eternity and become an Eternal of this universe. Only then could one reverse time and laws to directly resurrect an intelligent lifeform cleansed by