Demon King: I Am the Mixed Spiritual Root of the Five Elements

Immortals and demons are just a thought apart. If immortals are not good, why are they immortals? If demons are not evil, why are they demons? Let's see how a young man who walked out of a small mountain village can see through the warmth and coldness of the world, how he can figure out the good and evil in his heart, how he can make his way in this cruel world of immortality, and how he can create a new atmosphere in the world of immortality and become an eternal demon king that has never been seen before or since. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.