[Short Essay Call]
She looked exactly like his sweetheart. She once thought she was just a substitute, but in fact she was not even a substitute in his eyes.
Cheng Yu originally had a well-matched fiancée, but he was extremely gentle and considerate to Li Xiu, a miserable girl from the countryside. Unsurprisingly, Li Xiu fell in love with Cheng Yu. Li Xiu became pregnant and gave birth to a child. Cheng Yu's legitimate fiancée provoked Li Xiu: "Your son's kidney is in my body, and the kidney in your body will also be mine in the future."
Later, Li Xiu discovered that the woman who was deliberately trying to drive her away actually wanted to help her escape from the devil's imprisonment. It turned out that they were twin sisters.
After Li Xiu left, Cheng Yu went completely crazy. He put a red mole exactly like Li Xiu's on his fiancée's forehead.
[The strategizing, paranoid, yandere and ruthless male protagonist + the gorgeously transformed toxicologist female protagonist]
