The background of the story between the female protagonist and the prince was that the female protagonist had traveled to the past to become the substitute of the princess. During this period, the prince said to the real princess,"I fell in love with your substitute." Later, the female protagonist and the prince fell in love.

I recommend "Reborn in the Early Years of Kangxi" to you. This is an ancient romance novel written by the author, Ji Yueguan. The female protagonist was reborn to the Kangxi era and became the third empress of Emperor Kangxi. Her aunt was Empress Xiaokangzhang of Emperor Shunzhi, and the Crown Prince was her future husband. She even gave birth to the cool Fourth Master, Emperor Yongzheng. Among them, the plot of the novel also involved the Crown Prince falling in love with his princess aunt. I hope you like this fairy's recommendation. Muah ~😗

I recommend "War Concubine World: Your Highness, please go!" This is for you. This novel is about a princess who transmigrated and was reborn. She relied on her own abilities to turn the tables and become a concubine. In the story, the female protagonist was pursued by many men, including her third brother (Prince), who had always had deep feelings for the female protagonist. The story had palace struggles, national feuds, love and hate, and other plots. It was very exciting. I hope you like my recommendation. Muah ~

I recommend Wanting to Enter the Concubine: Your Highness, Don't Be Too Asking for a Beating! This novel fits the plot you described. The female protagonist was the daughter of the Prime Minister of Xia Country. She had transmigrated to an era where the Three Kingdoms were in power. At first, she liked a general, but was later stopped by the king. In the end, she got together with the king. I hope you like this fairy's recommendation. Muah ~😗

I recommend the novel,"It's Hard to Be a Concubine's Daughter's Princess." The female protagonist transmigrated into the unfavored young lady of the ancient Prime Minister's Estate, but she was suddenly turned into a princess who appeared out of nowhere. Later on, she fell in love with his highness. However, the female lead left once to save someone, but she eventually returned to his highness 'side. I hope you like this fairy's recommendation. Muah ~😗

I recommend "The Power's Favorite Wife: The Princess Consort Is Bewitching Again" to you. In this novel, the female protagonist transmigrated to become the princess consort of the prince, which was also a substitute marriage. However, unlike other novels, the female protagonist did not have the memories of the princess after transmigrating. Instead, she had the memories of her previous life, which allowed her to be at ease in the palace struggle. I hope you like my recommendation. Muah ~

😋I recommend the following novels to you: Yue Nv Zhu Yan: The female protagonist is a Jianghu chivalrous woman who transmigrated into a princess, while the male protagonist is a cold and proud prince. The story is full of love and contrast between the two extremes. "Princess, Your Male Lead Is Actually Three Hundred Years Old": The female lead was the daughter of a concubine whose cultivation had been crippled, while the male lead was the strongest top-notch expert on the continent. He was three hundred years old and had a divine weapon in his hand. Their fate was bizarre and interesting. "A concubine's daughter as a concubine: the princess of the marriage plays with the evil king." The female protagonist was the daughter of a concubine and was forced to become a princess and the princess of the marriage. On the first day of marriage, there was chaos. The male protagonist was a prince whose side was hidden deeply. I hope you like this fairy's recommendation. Muah ~😗

The recommended novel, The Black-bellied Emperor: The Empress Is Under House Arrest. The male protagonist was a black-bellied emperor and had an emotional entanglement with the female protagonist, the empress. The female protagonist was initially placed under house arrest by the emperor, and later the male protagonist gradually fell in love with the female protagonist. The female protagonist was once trained to be an assassin. She was previously under the control of the Emperor and later developed feelings for His Highness. His Highness was previously a fool. The plot of this novel was complicated. The plot of a father and son liking the same woman was very attractive. I hope you like my recommendation.😗

The title of the novel might be The Maid's Song: A Kiss in the Rain.

I recommend a novel called "Heal Without Medicine." It's a modern romance novel about urban life. The female lead was Shuyu, and the male lead was Xu Zhan. The two of them met because they had been cheated into a blind date and were almost raped. Later, under the male lead's careful steps, they gradually fell in love. The writing style of this novel was relatively gentle. It was a sweet story about love after marriage. I hope you like my recommendation. Muah ~

Prince Leng Qing's Substitute Princess was an ancient romance novel written by Xia Zhihuo. The story was about the heroine being treated as a joke on her wedding night and becoming the most unpopular princess. However, she was surprised to find that the man who had been avoiding her was suddenly interested in her. The heroine thought that he hated her, but when he ascended the throne, he wanted her to return to him and promised her a prosperous life. However, the female protagonist remembered everything and refused to become his princess. She wanted to escape back to her own world. The novel was completed, and the entire novel could be read online for free.