Asura Mad Emperor - Chapter 24 - Going to the Great Wilderness

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

The world I transmigrated is filled with players, with survival already a struggle. Moreover, I was entangled with a System to become the most visible NPC...The natives resent me while players see me as a thorn in their side.I needed to strive with all my might to live a good life in this foreign world while avoiding being bullied by the players. I can only turn the sufferings I experienced into the sufferings of others. I would have to keep all the benefits for myself, grow vigorously, and become an invincible boss who could never be defeated by players...This is a tale of the classic Fourth Day Disaster story while being struck by the disaster itself.My completed work of over ten thousand subscriptions, “Dream Master of Ten Thousand Worlds” is a testament to my credibility. Feel free to dive into it.

Emily Molson, PA to Derek Haven, CEO of Haven Group has nightmares every night, that prevent her from getting a good night's rest.Derek Haven, on the other hand is lucky to get any sleep at all. The two of them work close together but have no idea that they have the same problem.Then one night they end up in bed together and a miracle happens.

Demons in Academy of Light are described as vile, dark, cruel, evil, impure, and a whole lot of other things. At least, that’s how they’re portrayed in the game—a sacred land where demons and dark energies aren’t supposed to exist. That’s how it was supposed to be... So what the hell am I supposed to do now? Thanks to my rotten luck, my soul ended up possessing the lowest-ranking demon, the one who dies at the very beginning of the story... I’m screwed! I have no other options left... If I want to survive, I have to kill the protagonist.