[Secret identity + sickly beauty + chief minister + power imbalance + spatial dimension + face-slapping]
Jiang Yingxue transmigrates into the body of a villainess. The original owner resented her sickly husband, Wei Jingshen, for holding her back, beat him every day, and demanded a divorce. In the end, the male lead skinned her alive.
The first thing Jiang Yingxue does after arriving is make sure Wei Jingshen gets good medicine and good food, nursing him until his complexion is rosy.
Six months later, she announces she wants a divorce. The man lifts his eyes and says coolly, "Too late. Did you really think I was sick?"
Jiang Yingxue nearly spits blood when she investigates: Wei Jingshen is the chief minister of the dynasty, with half the court in his hands. He pretended to be ill to avoid trouble!
She tries to run, but Wei Jingshen pins her against the study wall and murmurs hoarsely, "You think I didn't know about the medicinal meals and spirit spring water you gave me all these months?" Jiang Yingxue's spatial dimension is exposed, so she decides to go all in, using its medicinal herbs to shore up his position at court while filling in every hole her family, the Jiangs, had dug.
When the Jiangs discover she's backed by the Chief Minister's residence, Old Madam Jiang comes to claim kinship, only to be stopped at the gate by Wei Jingshen's guards. "The Chief Minister's wife says the Jiangs married her off to a sick man because they wanted him to kill her. Now that the sick man has become the Chief Minister, the Jiangs are in no position to claim kinship."