I Am A Matchmaker on Taobao - Chapter 1:

He rose from abjection and achieved eternity in glory.
He embraced the prettiest beauties and killed the strongest opponents.
He was able to shift the clouds into rain and cover the sky with one hand.
He could overrun the entire world and go anywhere as he pleased.
He pacified wars and held the world in awe.
He was matchless in the world.
However, his hair turned white overnight for his beloved woman and he was on the verge of death.
He was surrounded by enemies who were trying to take his life.
He struggled his way to become mighty and fought for everything he cherished.
For this age, he was the only king of the Dark World.
His name was a byword for might.
As a man living in the world, his only ideal was to pursue brilliance.

Su Ran, a music prodigy, woke up transmigrated into a book.

At that point in time, the main story arc in the book had already been completed. As a villainess female supporting character, not only did she need to take over the original owner’s pitiful life in poverty, she also gained an instant son right at his rebellious period.

Ten or so more years from then, the son would turn into a twisted, evil villain. He would appear in one of the extra chapters to pick on the male and female lead’s children.

***

Su Ran: Son, you shouldn’t be too outstanding.
Su Han: Why not?
Su Ran: ’cause you will be killed.

Su Ran: Son, would you like to learn music from me and become a zen, little fairy boy who only needs to drink dew.
Su Han: No, I want to go into business so I can support you.

- Description from Novelupdates

Ezekiel recognized early in life that he didn't want to follow in his parent's footsteps and spend the rest of his days as a mere farmer. No, his eyes are set on a grander stage, a place where tales of monster hunters, mighty generals, and benevolent heroes hold court — A world of Magic and mysteries.One day, the opportunity he had been waiting for arrives. Without a second thought, Ezekiel throws himself headfirst into the adventure. However, not everything turns out to be as magical as he had dreamt it to be...THIS IS A SLOW BURN FANTASY PROGRESSION LITRPG STORY:Even though you are not going to see blue boxes from chapter one, I guarantee you that this IS a LitRPG story. This is, however, NOT a pure “game world”! Instead, I have tried to integrate the interface elements of a LitRPG into a world with a very thought-out magic & power system, which will be explored over the course of the first book.This world doesn't work like a game, where you can put '5 points in strength' and the body somehow changes magically into a stronger version of itself. It might take a couple of chapters for the world and magic to start to make sense, but I feel like a power system built on solid principles is a lot more rewarding in the long run (...and more IMMERSIVE!).

After rebirth, she, who used to be a top international spy, becomes the eldest daughter of the Fengs, a fat girl who is ugly and foolish in the eyes of the ordinary people.
Mastering Royal 18 Saber Moves and Purgatory 9 Palms, she rose to fame with the martial arts of Demon Cook.
Upon an imperial edict, she was ennobled as the wife of Lord Cen, and then suffered various intrigues and plots…
She proved herself to be a real overmatch and a true genius to the world…