As Sukuna in Invincible - Chapter 80: Bonds of Convenience

Master martial artists were beings that no one can obstruct. A martial arts expert has been reborn into the body of a genius whose cultivation has been abolished and has been abandoned by a woman. Therefore, he starts cultivating the art of Xing Yi Quan, producing a solar system within his dantian. His innate talent tramples over all the geniuses, and even the geniuses among geniuses.

His powerful spirit and ruthless and ambitious nature, no matter who he is reborn into, will never change! Slaughter is instinctive, being cold-blooded is his personality, exterminating an entire family is only a means towards a goal, cruelty means infamy, and chasing after women… is just an interest.

- Description from Novelupdates

A world where the [Demon King] was defeated by a [Hero] that came from another world. People carelessly forgot about their fear of the [Demon King] and of monsters, living in peace.

In a forgotten and run-down cave in the mountains, a new monster that should not have been born was given birth.

The monster’s name was the [Black Ooze]. It was nothing exceptional other than its black color, an ordinary slime.

However, this slime had the special characteristic of being able to take the abilities of the living things it swallowed. It preyed on an insect that had paralytic poison, as well as other animals. Following that, it attacked a human, obtaining his knowledge and [Desire].

Before long, the monster established its target as the female mage that came to explore the cave.

This world still wasn’t aware.

Chu Nanli, the noble Goddess of Chu Kingdom, revered and worshipped by thousands.She concealed her identity and married into a foreign land, all for Ye Yunting's once spoken words, “In this life, this young master will only have eyes for you.”After the marriage, she diligently served him, cooking and washing for him, but he betrayed her, despised her, and let his servants oppress and humiliate her.Having just arrived, her scumbag husband wanted to force her to miscarry?As a military surgeon from the year 2090, she wasn't someone to be trifled with. Harm me slightly, and I'll retaliate a hundredfold! She hacked her path, eliminating enemies, seeking revenge, and even expanding her own influence.After their divorce, a renowned young general, an unparalleled court Divine Doctor, and an outstandingly talented top scholar all fell for her, each eagerly proposing marriage to her.Ye Yunting could only cry and line up, “Lili, please give this king one chance.”“Please let this king see the child, our child...”However, he was callously kicked aside by the almighty, unapproachable Regent King!“Get lost, my child doesn’t need a father!”

Traveling through time, he became Zhang Gui, a foreign relative of the Tianqi Dynasty. Because he didn’t want to be tortured to death by Li Zicheng in the future, he had to embark on the road of harming the powerful and bureaucratic officials of the Ming Dynasty.

The Yanguan scolded him for coercing the king and making disorderly manners.

The prince scolded him for being greedy.

The official hates him for being mean and cruel.

But helplessly, most of the Nine Frontiers are his lackeys, and even Jiu Qiansui is his godson, and the emperor can’t do anything about him.

Therefore, the Ming Dynasty was at the mercy of him.

- Description from novelbuddy