The Demonic Vulnerable

One day Ning Fen managed to lay his hands on an ancient book, the Eight path six fold gate. As the book was coveted by many, he was targeted by experts and was even betrayed by his love , family, friends and sect ,he was left distraught and angry he vowed that he will kill all of them And used a demonic technique to take over another’s body.
Now that he is has reincarnated we shall see him kill the heavens and trample over then.