Journey to the West: I Am the Executioner on the Dragon-Slaying Platform

On the eve of the male protagonist's journey to the world of Journey to the West, his identity is the executioner of the Tang Dynasty who is half of the witch race. At the beginning, he was seconded by Wei Zheng and killed the Dragon King of Jinghe in his dream, activating the "Illustrated Book of Sins". He discovered that the so-called journey to the West to obtain Buddhist scriptures was actually a scam in which gods and Buddhas in the sky used mortals as suckers to harvest incense and luck. The male protagonist takes advantage of his position to execute prisoners on death row in the mortal execution ground, but in fact he secretly kills demon mounts and even gods who have violated the laws of heaven. He formed an alliance with the demon noble concubine who was deep in the palace and intended to subvert Li Tang's kingdom. One wielded power in the court and harem, and the other killed people in the execution ground. As the illustrated book lights up, the male protagonist acquires the magical power of the ancient ancestral witch, and finally kills the Lingxiao Palace to reestablish the order of the Three Realms.