Koko wa Ore ni Makasete Saki ni Ike to Itte kara 10 Nen ga Tattara Densetsu ni Natteita - Chapter 184 - Attacking The Main Base 2

Accidentally, she got pregnant.

A good-for-nothing man married a beautiful girl but was kicked off the bed on the wedding night. Furiously, he wrote a bill of divorce and ran away.
He was schemed a car accident in which he nearly lost his life. However, it turned out to be a blessing. He swallowed the soul that passed through the outer world, thus obtained superb medical skills and martial arts.
Later on, with the silver needles and invincible martial arts, he embarked on the road of counterattacks and was committed to his great dreams.

- Description from Novelupdates

I possessed the body of a villain who torments the male protagonist in a tragic story and dies.Before meeting the male protagonist, I managed to endure my miserable life with survival skills and magic.When I finally met the male protagonist:“Get lost.”He bared his teeth like a kitten.But as we got a little closer,“Lila, help me.”I worked hard to take care of this unexpectedly pitiable young master.And then…“Lila, do you love me?”“What?”“I’m asking if you love me.”“…Young Master.”“I love you.”“…”When I was too stunned to respond, he smiled and approached me.“Lila, tell me you love me. If you do, I’ll give you everything I have. Okay?”It seems I raised him too well.The young master I had so carefully raised began to obsess over me.

Originally born from a wealthy family, she ends up leading a vagrant life for fifteen years. However, when she is eventually found by her family, she falls into another devious plot and eventually dies tragically.

Fifteen years after her rebirth, ravenously raging for revenge, she tears down the hypocritical mask of the foster daughter who had taken her place, and reduces her greedy stepmother and stepsister back to their original sorry states.

To the jerk’s profession of his deep love for her, she only has one thing to say, “Get the hell out of my life. The love you speak of humiliates love!”

Regardless of the appearances of you monsters, I’ll take in it my stride with my capability, building a business dynasty of my own, sitting in the depths of my riches, bathing in the glistening limelight of the world.

A certain rich empire’s CEO: “Don’t mind me. I’m just leaving my mark here to declaring my possession rights; I’ll wait patiently for you to grow up!” The queen’s mighty return with commercial warfare fully within her grasp, she navigates the power struggles with skill and verve. When it comes to scheming conspiracies, all she has to say is, “Who are you again? Don’t even bother!”

- Description from Novelupdates