Devil Among Ghosts

Do you believe there are ghosts in this world? Do you believe there are demons in this world? The protagonist Lu Yuming traveled to an era where ghosts were rampant after making a deal with the devil. Under the temptation of the devil, the protagonist steps towards the abyss. How does the protagonist survive in an era where ghosts are rampant? What is the relationship between the devil and the protagonist? What future will the protagonist have? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.