Naruto: The Outsider's Resolve - Chapter 1.5 (005):

In a future city intertwined with science, magic, and various races, a fearsome villain lives.“How dare you try to use such a young child. Do you have no conscience?”“It’s truly regrettable. To think that this girl could be the key to eradicating a den of evil.”“You can rest easy now. We will definitely protect you.”Sorry, but I’m actually that villain…It seems like a serious misunderstanding.

She was the head of a powerful, medicine-orientated aristocratic family.

Crossing through a millennium, she ended up in the body of the General Household’s “trash” young miss, whose engagement with the Crown Prince was just broken as she suffered under everybody’s taunts!

In the drafting feast, she was re-engaged by the Emperor to marry the famous disabled prince!

Everybody laughed, a blind trash with a disabled wastrel. What a perfect match!

However, they didn’t know that in her hand, she grasped the long-lost primordial pill recipes! Her practice in medicine had reached the apex! Her contracted beasts were unique in the world!

What was the most frightening, was the disabled prince she was engaged to…….

A black-belly full of dirty tricks, with a heaven-opposing cultivation physique, he defeats all geniuses!

In his wheelchair during the day, yet entangling her in bed as he trained his waist muscles… MF! Is he really crippled!?

- Description from Novelupdates

Renji Kurozawa was just another nobody—until he died and was reincarnated in a world of swords and magic. Summoned alongside other “Chosen Heroes,” he hoped for a second chance at life.But his gift was different. “Death Claim”—the power to steal abilities from those he kills.Betrayed by his allies and left for dead, Renji embraces his dark power. With every enemy he slays, he grows stronger, turning from a forgotten outcast into the most feared force in the kingdom.Now, hunted as a villain and pursued by gods, Renji must carve his own path—one kill at a time.If fate wants a monster, he’ll give them one.

When opened his eyes, Lin Tian realized that he was reincarnated into the modern cultivation world.

Seeing this person's memory, his expression became gloomy because his identity is a young master from a rich family.

Knowing this, some people might be happy, but not for him.

He had read many modern cultivation world theme novels.

Doesn't the young master like him is a stepping stone for the protagonist, and had a tragic ending?

Just when he was really desperate, suddenly the system came.

[Ding, congratulations to the host for binding the destiny villain system]

[Beginner's prize has been distributed]

[Congratulations to the host for obtaining a martial emperor level cultivation base]

Cool, just slumped, but now invincible?

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First of all, this novel doesn't have any elements of a brainless Harem, our MC will not be like other MC who every time he goes somewhere, he will bring another woman.