I was pampered like a treasure after being married off to the young marshal, but my father and broth

A seemingly delicate but actually cunning female doctor vs. a tough young marshal with a lewd personality.
The father said, "Sheyu, don't blame your father for being heartless. The reputation of a merchant over the past century cannot be tarnished."
The elder brother said, "Third sister, if you die, only then will your brother be able to secure the mountains of gold and silver you leave behind."
Fourth Sister: "Good sister, just wait until you're thrown into a beggar's den, and see how those maggots treat you, this high and mighty Mrs. Chi!"
It wasn't until his closest relatives forced him to eat poisoned porridge and wrapped him in straw mats that Shang Sheyu realized that all his hard work in elevating his family to power and wealth had only earned him disgust.
The one they always loved was the fourth sister, who only knew how to cry and complain about her weakness.
Reborn on the day of the arranged marriage, the red silk remains, but the murderous intent has already appeared.
The fourth sister, having stolen her marriage proposal, whispered smugly, "Third Master Quan is a madman. Sister, jump into this fire pit for me! I'll lead the whole family to prosperity and become the number one rich wife!"
The fourth sister has also been reborn and wants to steal her fortune and follow her path.
She lowered her eyes and smiled softly.
Without her, how could he have achieved such great success?
"Okay, then I'll marry into the Quan family."
The vicious mother-in-law, who had tortured the fourth sister until she knelt and begged for mercy, personally put the family heirloom jade bracelet on her wrist: "Good child, this will be your home from now on."
The three little tyrants who had once made things extremely difficult for the fourth sister now respectfully called her "Little Aunt".
When her father and brothers, who loathed her to the core, watched her scheme and plot for her new family and become the darling of her husband's family, they finally regretted it and begged her to come home, but the Quan family had already coldly blocked them at the door.
The mad, bloodthirsty Third Master Quan pulled her into his arms:
"She is now the mistress of the Quan family."
"You, get out."