MTL - Food: How Did I Become a Chef When I Set Up a Stall? - Chapter 39 Got a business from the temple!

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

As a virtuous wife, does it include tolerating his cousin, enduring his concubines, bearing his mother?

“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.

"Your bed is cold," spoke a voice in the room that had her eyes go wide in fear. Nervously, she turned around, gulping softly to see a shadow on her bed as if someone laid down there. The man who had been lying down sat up emerging out from the shadows where he had been waiting for her.