Since human beings evolved beyond the primitive phase and started exploring the mysteries of spiritual energy, tenebrum energy had existed in the world of Cultivators like a shadow.
The demonic Cultivators who were willing to be corrupted by the tenebrum energy and practice the arts of the devils for fortune, strength, ambition, or grudges had been all Cultivators' mortal enemies since the era of the ancient Cultivators forty thousand years ago.
The fall of the glorious Star Ocean Imperium could mostly be blamed on the extraterrestrial devils, too.
When Li Yao was little, the teacher in his school had told him that the demonic Cultivators were all monsters without any humanity who knew nothing expect killing.
However, on second thought, such an assertation was too simple and rough.
