MTL - Rich Devil - Chapter 515 , don't sleep, wait for me

She conspires and provokes the most powerful young master in Beijing! They sign a contract and with his every call, she has to go anywhere and do anything his bidding. When their contract ends, she smirks and said, “I’ll take the money and you can leave. We don’t owe each other anything.”

He is Young Master Ya who rules Beijing. He controls the business empire during the day, and he is the strongest king at night. He is cold and women are merely playthings to him. With his power, the women he has eyes on have never been willing to leave him, yet she is an exception. She loves money, like all the previous women, but she is never shy of showing her greed. And he never realizes that he will ever grow a heart for such a promiscuous and cheap woman…

He points a gun straight at her heart. “Die with me, or accept my love—which one do you choose?” She pouts and turns around, before she pushes an adorable child into his arms. “Here, there’s your answer.”

“Is this man not going to divorce me? Why does he still ask me to warm the bed every night?”

A certain man said this was due to the winter being too cold. However, when summer finally arrived, she still needed to warm the bed, thus a certain girl could not take it anymore:

“I want a divorce!”

A certain man only smiled wantonly and said, “Divorce? Sure, as long as you agree to two conditions of mine.”

“What conditions?”

“Either you pamper me or I pamper you, the duration is ten thousand years…..”

- Description from Novelupdates

Jiang Bai woke up one day and found with shock that he had transmigrated to a parallel world that is similar to Earth. There, he was granted a cheat system to help him forge the path of a tyrant in this new world. He was now stuck in this parallel world body, the body of a weak and cowardly person. Join Jiang Bai as he rose to the top in this new world!

- Description from Novelupdates

To be exact, the female lead is an “older sister” type, amid many beauties and handsome guys, she's no white lotus.Also, it's said that the name of this book is the same as a brand of sheep's milk powder.