The Demon Immortal

This is a cursed land of antiquity, where no living thing can sense the spiritual energy of heaven and earth. It is considered forsaken by the gods. After an accident, two brothers discover a shocking secret about the place: it is not devoid of spiritual energy. All of it has been absorbed by an ancient formation to suppress a forbidden object capable of turning immortals into demons and demons into immortals. And so the wheels of fate begin to turn...

The line between human, immortal, and demon is but a single thought. A cultivator may fall to the demonic path, while a demon may awaken and become an immortal. Follow your heart, and a human may become either a demon or an immortal.