Half a life as a demon, half a life as an immortal! No demon in the left hand, the heavens in the right!
The protagonist starts out as an ordinary person. By a twist of fate, a sect takes notice of him, and he awakens as a being with both immortal and demonic constitutions. He enters the sect to cultivate. Along the road ahead, he gains everything, only to have it all torn to pieces. Having come to see through it all, the protagonist ultimately proves the Dao by his own means. Across the Myriad Worlds, no one dares question his words: the one and only Immortal-Demon Emperor throughout the ages!