MTL - One Useless Rebirth - ~ Related to the work

He is a legendary business powerhouse, a King with a business empire. She is just an ordinary female student. A deal, – a paper marriage, a marriage for four years. Four years later, she turned away fearlessly. She thought that their path would never cross again, but he took her in his stride and refused to let go of everything about her, even interfering with her getting close to other men!

This novel is also known as The Yun Family's Ninth Child is an Imp!

She was an unprecedented assassin, a trump card deadly agent, but transmigrated through into Ye City’s number one prodigious good-for-nothing young miss.

I am an ugly woman? I will break out from my cocoon into a gorgeous butterfly that will blind your snobbish eyes!

I am useless piece of heap? Lightning in my hands, I will smite you to a well-cooked crisp!

Her greed and lust for money had no end. She is lewd to the core with no bottom in sight, sworn to have love fortunes blossom all around her. However, a certain someone holding a blade in the left hand and a sword in the right hand began cutting those love fortunes one by one!

The person smiled with perked brows, “Little Ninth, it looks like I have to let you become occupied!”

- Description from Novelupdates

Yu Ziyou and Zhong Wan served different masters.

They had once been the closest of souls, and were the bitterest of enemies.

After losing the fight for the throne, Zhong Wan brought his two young masters with him far toward the borders for the sake of survival. He relied on the little friendship that existed between him and Yu Ziyou when they were young. He borrowed some of his personal belongings while also dropping various hints around which made everyone think that there was something intimate going on between them.

Given the Yu Clan’s powerful authoritative presence in the imperial court, this appearance of a close tie allowed Zhong Wan to live a much better life than before. As such, the stories he cooked up began to carry more and more weight.

As rumors of their lovely romance spread a thousand miles into the horizon, Yu Ziyou, who was located in the distant capital city, eventually caught wind of his deeply moving and epic love affair. In a trance, Yu Ziyou, who had been completely brainwashed for seven years, believed in them. He guessed something special really did happen between them back in those years…

- Description from Novelupdates

Xin Yun, a sarcastic young man, traveled to an unknown world by chance, but lost his chance to become the strongest because of his obsession with women... or sex. In a collision of the powers of nine powerful men, an incredible thing happened. Xin Yun was reborn back to the time when he traveled to the Isekai world. A fantasy journey is about to begin... [The comic adapted from this novel is popular all over the world]