The Exorcist - Chapter 17Book 8: : Evil Aura

Luo Zheng is at the bottom of the Luo Clan hierarchy, despite his family being the founders of a power refining technique that could instantly defeat any opponent.

One night, enraged by unfair treatment from a family steward, Luo Zheng burns the family records. In doing so, the hidden magic in the book engulfs him and Luo Zheng becomes a new skilled fighter. Fleeing his home and despicable clan, Luo Zheng must learn to harness his powers to rescue his younger sister while his own cousins are on his pursuit.

- Description from Novelupdates

“Transmigrate as the Final Villain of the novel...” Ark stared at his reflection in the mirror he held. It was Theos Von Fallen, the final villain of his favorite novel.Although he was the final villain and the strongest in the novel, he was killed by the protagonist and his harem in the finale.[Ding. The Heroine Snatching System has started] Ark gave a crooked smile when he read the system message in front of him... “Exchange!” he shouted, unwilling to accept the fate they had in store for him.Trapped in the world of his favorite novel as the most “evil” and powerful villain, Ark, now Theos, will use his knowledge as a fan obsessed with the novel to take away all the protagonist's opportunities.Whether he can become the focus of the whole show or whether a script will dictate his fate, he will decide! He will live as a true villain who doesn't care about anything but his life and his loved ones.

Louie became a mythical dragon that was capable of traveling between Earth and the Otherworld at will.

From this point on, the number of races in the Otherworld became more plentiful. His territory was orderly and clean, with incredible cuisine, countless novelties, and civilization and philosophy ahead of the whole world.

On Earth, his existence caused the rebirth of magic and mythology, allowing him to become the only God.

“I am the Golden King, the Giver of Life, the Champion of Magic, the Weaver of Dreams, the Guardian of the World, the Master of Time. Let mortals bow down before me and look up! Let the Gods tremble in fear before me!”

One day, I was given the mysterious power of Hwanmong.