MTL - Konoha: Rebooting Life of a Medical Ninja - Chapter 54 Deny 1 knife

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 dominant forensic doctor who traveled back in time to the era of the Great Tang's Zhenguan reign, became a distinguished family's abandoned girl.

“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.

If I fail to seduce all the heroines of this s*xy game, I’ll die.