A Second-order Ancient Demon is already a being that exists between the limits of a Supreme Saint and a True Immortal.
A First-order Ancient Demon can devour an average True Immortal; only a seasoned warrior at the peak of True Immortal strength can slay one.
"Even the weakest Third-rank Ancient Demon rivals a Supreme Saint. The starting point of the Ancient Demon race is unbelievably high," Li Hao said.
Even top-tier races like the Dragon Clan and the Ancient Phoenix couldn't compare to such exaggeration.
"Ancient Demons don't belong to the myriad races of the Heavens; they emerge from Reincarnation, not only terrifyingly powerful but also possessing an incredibly exaggerated growth rate. Otherwise, they wouldn't have put the True Realm through an apocalypse back then..."