Please recommend a novel with the Book of Changes as the female protagonist. There are servant girl Yuan 'er, silly father, grandmother who loves her, and the male protagonist who is full of poison. There are also plots such as the crown prince breaking off the engagement.

I recommend you to read a transmigration novel,'Stop acting, Princess Consort. His Highness can read minds.' The female lead was Su Qiyin, the new Best Actress. She was dressed as the female lead of a bad ending sadistic novel. She was dancing in the male lead's minefield and wanted to be dumped as soon as possible. Who would have thought that the ruthless king could actually listen to her heart and see through her thoughts. The male lead was the Palace Master who could read minds, and the second male lead was the prince. The male lead arranged for the female lead to stay in the prince's residence. The whole story is sweet and refreshing. I hope you will like it!😘

I can recommend "Trash Defies the Heavens: The Strongest Princess Consort" to you. The female protagonist of this book transmigrated to become the useless miss of the general's residence. She was originally engaged to the Crown Prince, but after the Crown Prince regretted his marriage, the female protagonist entered the eyes of the Prince, and the relationship between the two began. I hope you like this fairy's recommendation. Muah ~😗

The female protagonist Liu Wangshu was the Crown Princess in her previous life. In this life, she was forced to marry the Crown Prince who did not have a long life and was not favored. She made a deal with the Crown Prince. He pampered his white moonlight while she lived her carefree life. She used the universal system to open a medical center and earn money. He only wanted to be carefree in this life. What was wrong with a certain shameless master? The plot is fictional, please do not imitate it. I hope you like this fairy's recommendation. Muah ~😗

I recommend Help! The icy cold shizi ye has feelings for me. This book is for you. In the book, the female protagonist Qu Fulan transmigrated to become a servant girl of the North Dinghou fu. However, through hard work, she was promoted and finally got together with the shizi man. The plot of the book fits your description very well. I hope you like this fairy's recommendation. Muah ~😗

[Evil King and Poison Concubine: The Eldest Miss of the Domineering Divine Doctor] The female protagonist of this book is the world's number one assassination organization's genius doctor. After marrying a man called the silly prince, she began to show her extraordinary aspects. I believe it also fits the plot you described. The plot of this book was complicated. The protagonist was kind and smart, but at the same time, he was hot-blooded. I hope you like this fairy's recommendation. Muah ~😗

I recommend 'The Prince Dotes On The Black-bellied Female Medical Concubine'. The female lead's engagement was also broken off, and after the engagement was broken off, she was also called Yue' er. The male lead is the Prince. The plot of this book not only included the struggle of the palace, but also the plot of doing business and farming. The protagonist of the novel wantonly displayed her freedom and showed her infinite charm. I hope you like this fairy's recommendation. Muah ~😗

😋I recommend the following two novels: The female protagonist of "The Poison Queen of Rebirth" had boundless glory in her previous life, but she eventually died under his and that woman's scheme. She had been reborn and returned to take revenge! The female protagonist was strategizing, scheming, and intelligent. And not Mary Sue! "The Female Supporting Counterattack Manual" The female lead was a transmigrator. She had a golden finger on her and was a violent bully. Look at how she turned the tide, how the loser counterattacked, how the legitimate daughter returned, and how the capital would be reigned for the rest of her life! This book avoided the appearance of the Mary Sue element. The female protagonist had a plan during the counterattack, and her intelligence was online! I hope you like this fairy's recommendation. Muah ~😗

I recommend a novel called "Jinxiu Little Servant Girl." The male protagonist started out as a servant boy, and the female protagonist also started out as a servant girl. The male protagonist's father was also a steward of this family. Later on, the male protagonist became the shopkeeper, and the female protagonist began to slowly advance with the help of the male protagonist. This was a novel with farming as the main theme. The female protagonist and the male protagonist had a lot of difficulties and challenges together. In the end, their efforts paid off. I hope you like this fairy's recommendation. Muah ~😗

😋I recommend the novel "Sheng Chong Loves the Little Stupid Wife" to you. This novel is a modern romance novel about wealthy families. The female lead got into trouble the first time they met and was doted on by the male lead. The female lead originally had a boyfriend, but she was wronged and abandoned, so she started a sweet and loving journey with the male lead. I hope you like this fairy's recommendation. Muah ~😗

He recommended 'Madam's Decree for Me to Succeed to the throne' and 'The Traversing Servant Maider'.