Both Wives Married at Once: Reborn, I Marry the Scumbag's Father on the Spot

In her previous life, she was tortured to death by a scumbag and a vicious woman working together. Reborn on her wedding day, she learns that Zhan Yu, heir to the Marquis of Zhan Yi, intends to marry his wife and concubine at the same time. She turns around and marries Zhan Yan, the infamous living King of Hell, becoming the nominal mother of that wretched heir. Her scumbag husband from her previous life becomes her good son in this one. Watch as she schemes to drive the vile couple apart and make them turn on each other. With her family's ancestral medical skills, she cures her disabled husband's hidden ailment, bears him children, and becomes the envy of everyone as the marquis's wife. All bow down to her, but only she knows how hard-won it all was. She climbed to the top one bloody footprint at a time!