In order to save her seriously ill younger brother, Xu Nuoyuan, she sold herself to the Duke's government. The Duke's wife forced her to give the antidote to the prince Gu Qianyi...
Xu Nioyuan didn't understand why the Duke's Palace chose her. It wasn't until she saw Gu Qianyi's sister-in-law on the day of greetings and discovered that she was somewhat similar to him that she realized that she was being used as a substitute.
Xu Nuoyuan just wanted to protect herself and her younger brother from the fight between the prince and the Duke's wife.
She always kept her identity in mind and did not dare to go overboard in the slightest. However, she found that the always cold-hearted prince liked to come to her room more and more.
Until he saved his younger brother and regained his freedom, he was about to leave, but Gu Qianyi blocked him in the corner: "You haven't given birth to a son for me yet, where are you going?"
Not bad, I like this plot line
I'm a fan of this book.