The Concubine Married into the Family as a Substitute and Became the Young Father-In-Law's Favorite

[As light as a chrysanthemum but ruthless as a genius doctor × Unrestrained but reliable young man] Before her rebirth, Meng Zhinan only had eyes for Li Yue. She did all the bad things for him, and ended up being poisoned and drunk. After her rebirth, she suppressed her sharpness and only wanted to protect her mother. However, when she was complaining about her injustice on a snowy night, Duan Mingye, the young prince of the British family, secretly saw that she was as tough as a weed, unbending. "Girl, your medical skills are so good. If I am seriously injured and on the verge of death, will you be willing to save me?" Duan Mingye asked with a smile outside the medicine house, covering his wound. Meng Zhinan only thought it was a joke, but she didn't expect that this figure would become the anchor of her destiny. When fate secretly teased her, Li Yue's invitation to marry him came again, and it was Duan Mingye who extended his hand to her: "Marry me and I will give you stability for the rest of your life." But the Yingguo Duke's government is about to fall. Can his promise really be fulfilled? Meng Zhinan, who already knew all this in advance, what could he do in it?