One Piece: Don't Worry, I'm a Doctor - Chapter 37 - : A Top-Tier Ability

Liola—the best assassin in his world—has vowed to kill no more. He was being chased by an assassination organization when he accidentally dropped into a parallel universe: through a dimensional gate and into poor teenager Kaiser’s apartment. Instead of going to the government shelter for lost dimensional travelers, Liola and Kaiser wind up going to school together.

Liola has been trying his best to live the life of an ordinary person, but after certain things happen one after the other, he begins to realize that being an ordinary person could be harder than being an assassin.

Ai Qian, a street-crazy author who wakes up every day because of her own poverty, is bound by the system!
The system is obedient: Host, you are the daughter of a rich family, you are a billionaire female president, you are a superstar… Are you happy?
Ai Qian: Hehe, I might be happier if there is no hero who can kill me at any time.

- Description from novelbuddy

Life Demon, Order Demon, Knowledge Demon, Fate Demon, War Demon…When various bizarre powers invaded, the world was clearly divided into two distinct sides.Some worship them as gods, walking upon the earth as their spokespeople.Others choose to drink a glass of strong liquor on scarlet nights, and raise the hunting rifle in their hands

[WARNING: MATURE CONTENT, DARK THEMES]“I will tie you to the bedpost and fuck you like a dirty little slut. Our bodies will meet in perfumes and in sweat until you're screaming for mercy from me… your big bad fuckable lord and Alpha.” He vowed and my face seared with humiliation.Wasn't it laughable that I was not humiliated because of his words, but because of what the thoughts that lingered at the back of my mind were?I wanted every bit of it. The crazy wild sex, the toxic bond… somehow—the sound of them set my soul on fire. I wanted them all.____Phoebe Skywalker is a humble maid in the mansion of the Prestigious Blue Moon’s Alpha. When she is chosen as the Moon's Chosen who is destined to mate with the Alpha, no one expected this taboo as only elites were allowed to become the Luna.Unable to tolerate this humiliation, the arrogant Alpha rejects her. But the Alpha Council intervenes, forcing him to mate with the unlikely chosen one.Phoebe becomes the pack’s Luna but Alpha Kaene would never open his heart to her… or so he thought. When he tries his best to intimidate her, promising her unending nights of merciless lovemaking, Kaene doesn't expect the feisty side of Phoebe that he soon comes to discover.The taboo Luna shocks everyone as she not only shines in conquering enemies but also in stealing the heart of the stoic Alpha Kaene.