Maybe a Fake Gintama - Chapter 574: Humans Always Repeat the Same Mistakes

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

The story about a family's struggle to ensure that, above all else, their youngest escapes from the mines where he was born into slavery. Follow Alistar as he struggles through terror and tragedy, embarking on a road to discover himself and his heritage.

“I shall fuck every woman's hole and mouth until I become the undefeated vampire lord of lust!”

With a demoness of lust fell on his boner, Zoravec, a 19 years old seemingly human struggled to keep his carnal desires in control.

The only one way to find his mate is dual cultivate with every single existing woman! But things go wrong when his vampire blood activated the bloodlust, and his first sex partner dies of blood loss.

Zoravec has no bloodline due to his mixed blood. But his power outbursts are no match for other vampire nobles. Especially with the huge harem of beauties who possess every kind of lethal power, who are at his beck and call.

What chaos will the hatred towards his own kind bring?

Xiao Yu, who was a student from modern Earth, accidentally transports to another world and becomes the lord of a territory. Facing an unfavorable situation, he vows to take back his family business, build his new territory, kill all of those who covet his wealth, and dominate the world!

- Description from Novelupdates