Primordial Chaos Dragon Tower: Harem System - Chapter 491: Big Sister, You Are A Bully

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

A young man plagued by recurring nightmares finds himself visiting a blind fortune teller, who sends him to a world of martial arts that looks a lot like the wuxia stories he used to read.

In the sky of this world, a tome shines every now and then, revealing the hierarchy of mighty beings that seek power amid troubled times. Determined to unravel the mysteries of his involuntary journey and the secrets of the world he has ended up in, he endeavors to ascend the tome’s rankings, all while looking for a path back home.

Official Chinese blurb

Wandering the jianghu with a blade and wine, where beauties’ grace is filling one’s mind.

A youth, saber on his back and wine gourd at the waist, strides forth, yet the jianghu of his heart seems only more elusive;

With each flipped page of the Tome of Troubled Times, decades of nights soaked in rain pass over the jianghu.

As he suddenly turns to look back, he finds that the mortal world has shattered in his wake.

“Did you really think that after all that you've done to me, I would simply let you go, Rosalie? You might as well go to the Devil himself because otherwise, I will definitely find you. No matter what.”One day, Wang Meiling, an ordinary office worker who likes to read romance fantasy books, wakes up in the body of Rosalie Ashter, a minor villainess in the R-rated fantasy novel that she was reading before this weird transmigration.As expected of the plot, Rosalie is supposed to die at the hands of her crazy and abusive brother Raphael, thus, armed with the detailed knowledge of the original story, Meiling is set to save the tragic villainess whose body she is now possessing and approaches Duke Damien Dio, the story's male lead who is suffering from the “Acme fever” curse.She offers him a one-year contract relationship, promising to help him relieve his suffering in exchange for his protection from the Ashter family and a hefty payment afterward.Although skeptical at first, Damien agrees to sign the contract, but when the time finally comes for Rosalie to leave the Duke, she realizes that ending their relationship might not be as easy as she thought.This novel can be categorized as “he falls first and he falls harder”.WARNING: The story contains mature content such as R18 scenes, obsessive/yandere behavior, domestic abuse, an indication of sexual abuse, and gaslighting. It will also include the depiction of violence and gore. Read at your own discretion.

A hundred years ago, he was a genius of the Emperor's Domain who made even the God of War wary. He was unparalleled in both alchemy and martial arts. However, his friend betrayed him, leading to his untimely demise.A hundred years later, he rose from being a dandy young master, starting everything anew. From then on, the world witnessed the emergence of an extraordinary genius.“Boss is even more ferocious than a wild beast!”“Boss values friendship above all else. He is forever my best friend!”“Kevin, no matter how long it takes, I'll wait for you. I won't marry anyone else!”“Don't ever provoke that man of calamity. That guy is a beast!”“I am Kevin Anderson, who dares to defy me?!”