Title: Return of the demon
Link: https://www.webnovel.com/book/13819810506508605/Return-of-the-demon
Genres: Eastern fantasy, Reincarnation
Synopsis: In the Grand War Long Tian killed the Devil Emperor but died alongside him when he self destructed.
Billions of years later Long Tian awakens to find that he had reincarnated. Hiss friends, family and enemies have all passed away a long time ago. Careful to not make the mistakes of the past, he vows to cultivate and return to the peak of cultivation once again.
But things may not progress as he desires. For as he awakes, so does the darkness.