Re:Zero Kara Hajimeru Isekai Seikatsu - The Hidden Village Oni Sisters Chapter 1: A Fiery Night

The notorious imperial court lackey and the meritorious military general were well-known for their mutual dislike, a pair of arch-enemies set in stone. Who could have foreseen the unexpected change in the winds of heaven: the general injured on the battlefield, both legs disabled, and even forced by the emperor to marry his nemesis.  

With one marriage edict, two people with mutual hostility are forced to marry and live under the same roof. Yet after these long days together, they come to the realization that this fellow is not truly devoid of any saving grace/unattainable and high out of reach.

- Description from Novelupdates

[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.

The journey to the martial peak is a lonely, solitary and long one. In the face of adversity, you must survive and remain unyielding. Only then can you break through and continue on your journey to become the strongest. High Heaven Pavilion tests its disciples in the harshest ways to prepare them for this journey. One day the lowly sweeper Kai Yang managed to obtain a black book, setting him on the road to the peak of the martials world.

- Description from novelupdates

Lugh woke up to find that he had transmigrated to a hundred million years later.