The Empress's No.1 Lackey - Chapter 258 - 227, please teach me, Lord

A good-for-nothing man married a beautiful girl but was kicked off the bed on the wedding night. Furiously, he wrote a bill of divorce and ran away.
He was schemed a car accident in which he nearly lost his life. However, it turned out to be a blessing. He swallowed the soul that passed through the outer world, thus obtained superb medical skills and martial arts.
Later on, with the silver needles and invincible martial arts, he embarked on the road of counterattacks and was committed to his great dreams.

- Description from Novelupdates

Erwin Warner is a material-dominant alpha with a very unsteady financial background. Though he has the face of an angel, his personality is the polar opposite. He can even kill a person if there is enough money paid for that.Leo Snow is an exceptionally beautiful dominant omega. Even the gods envy his unparalleled beauty from the heavens. He has a very strong personality and is very picky about his partner. He can be as deadly as his face when the time comes.Jean Snow, a very unstandable uncle of Leo, has an unsubmissive greed for everything Leo has, that doesn’t exclude the Snow Groups and Company. Even being the blood brother of Leo’s father doesn’t change the fact that he is exceedingly obsessed with this pretty, small omega nephew of his.

In regards to the MMORPG Cross Reverie, Sakamoto Takuma boasted an overwhelming strength that was enough for him to be called the Demon King by the other players. One day, he gets summoned to another world with his appearance in the game. There, there are two people that insist “I am the real summon master.” Takuma gets slave-turning magic used for summoned beasts cast on him by the girls –

(Warning: Harem, if you don’t like it, please refrain! Boldly breaking taboo ethical norms, not letting go of any beautiful women encountered!) A young nobleman with a delicate constitution, pure and kind, has always been protected by everyone. However, after two months of military camp life, he began to change for the worse. With unbeatable power in his hands, he became lawless, targeting countless beautiful women in the city. In his eyes, every beautiful woman is like a delicate flower. He wants to gather these tender flowers around him, then extend his strong wings to shield them from any harm...