Master Is Really a Big Devil

This is an era where spiritual energy is revived but is half-stopped by demonic energy... In order to take shortcuts and reach the top as soon as possible, hundreds of millions of people are looking for opportunities to become devils. Even dogs want to be devils. The demon sects are rising together, and all the demons are contending. How can there be any serious monks in this world? The young man accidentally traveled through time and became the Lord of the Underworld, holding the secret knowledge of the afterlife. When you establish a sect, you only accept dead people as disciples. You can also accept living ones. Beat them to death before accepting them! You said magic cultivation improves quickly? Sorry, you can also unlock equipment by defeating monsters and upgrading in the Netherworld Trial. The daily tasks are based on imagination, and the sect's exercises are all made up; A full-time Dark Lord, I am not only the master of the Dark Demon Sect, but also the mentor of all my disciples! Are you saying I'm cheating? Shut up! Which of my disciples doesn't cheat? In the name of the Demon Sect, kill all the demons in the world! This is a story about an unorthodox demon sect happily fighting against a group of demons... Also known as "The Lord of Darkness" and "I'm a Mentor in the Demon Sect"