"...Demons really can evolve."
Ligeia, her face still streaked with blood, murmured in surprise, "I always thought that was just a legend."
"It's almost like a legend indeed."
Yanis sighed, "Even in my lifetime, I've never seen a demon complete evolution, let alone you."
In theory, demons can certainly evolve. After all, the mark of the Great Sin's power system is right here, and maintaining an unchanging form would surely not conform to the ever-changing essence of the Path of Transcendence.
"Because demon evolution often requires the accumulation of a vast amount of the Path's force, which necessitates consuming a large number of souls and moreover a very long accumulation of years."
Aiwass, hearing the two's discussion, answered while tending to his own injuries, "If we stretch the time span to five hundred years, then demons who have completed evolution independently do exist."
After all, in this world, even the souls of mere mortals are quite dangerous to harvest.