There was no time travel, the male protagonist was a prince or a crown prince, and the story background was a fictional novel, similar to Princess Furong, the Crown Princess of the Cold Palace, and the Emperor's wife.

In the novel " Celebrating Years," the relationship between the Eldest Princess and the Crown Prince happened in chapter 86 of the sixth volume. There was a special relationship between them. The Crown Prince persuaded the Eldest Princess to sacrifice herself in exchange for the peace of the Crown Prince's family and prevent the outbreak of war. However, this affair was eventually exposed by Fan Xian. After the Qing Emperor learned of it, he was very angry. He put the Eldest Princess under house arrest and prepared to abolish the Crown Prince. After the Eldest Princess learned of the Qing Emperor's plan, she secretly joined forces with the Qin family and the Ye family to kill the Qing Emperor and push the Crown Prince to the throne. However, the Eldest Princess 'plan was leaked by a spy from the Ye family. In the end, the Eldest Princess and Crown Prince chose to commit suicide. In general, the relationship between the Crown Prince and the Eldest Princess played an important role in the story, showing the struggle and choice between power and love. The search results did not provide clear information on how the Qing Emperor had found out about their affair.

In the novel " Celebrating Years," the Eldest Princess, Li Yunrui, was the Qing Emperor's younger sister and Lin Wan 'er's mother. She was an ambitious and ruthless woman. She had an affair with Crown Prince Li Chengqian. The two of them plotted together to overthrow the Qing Emperor's rule and establish their own regime. In the end, Li Yunrui and Li Chengqian's conspiracy was exposed by Fan Xian. The two received the punishment they deserved.

The Qing Emperor discovered the relationship between the Crown Prince and the Eldest Princess in the sixth volume, chapter 86 of the novel " Celebrating Years." The Qing Emperor had discovered the relationship between the Crown Prince and Eldest Princess through Fan Xian's arrangements and investigations. After Fan Xian returned to the capital from Jiangnan to collect the palace treasury, he discovered that apart from the alliance of power between the Crown Prince and Eldest Princess, there was also a private relationship between aunt and nephew.

😋I recommend the following novels to you, I hope you like them: "General Poison Concubine: Evil King's Unbridled Favor" and "Explosive Pet Poison Concubine: Black-bellied Prince is Busy Courting His Wife". These two books were both ancient romance novels. The palace struggles, love and hate, and the male protagonist was super domineering. The plot was very attractive, and one would definitely be obsessed after reading it! I hope you like this fairy's recommendation. Muah ~😗

In the original novel," Celebrating Years," there was a special relationship between the Eldest Princess and the Crown Prince. The Crown Prince persuaded the Eldest Princess to sacrifice herself in exchange for the peace of the Crown Prince's family and prevent the outbreak of war. However, after their private affair was eventually discovered by the Qing Emperor, the Qing Emperor abolished the Crown Prince and placed the Eldest Princess under house arrest. In the end, the Crown Prince and Eldest Princess chose to commit suicide to end their fate. Therefore, according to the information provided, the Eldest Princess and the Crown Prince in the original novel ended up committing suicide.

In the original novel of " Celebrating Years," there was a special relationship between the Crown Prince and the Eldest Princess. The Crown Prince persuaded the Eldest Princess to sacrifice herself in exchange for the peace of the Crown Prince's family and prevent the outbreak of war. The Eldest Princess and Crown Prince's affair was eventually exposed by Fan Xian. After the Qing Emperor learned of it, he was very angry and placed the Eldest Princess under house arrest and prepared to abolish the Crown Prince. After the Eldest Princess learned of the Qing Emperor's plan, she secretly joined forces with the Qin family and the Ye family to kill the Qing Emperor and push the Crown Prince to the throne. However, the Eldest Princess 'plan was leaked by a spy from the Ye family. In the end, the Eldest Princess and Crown Prince chose to commit suicide. In general, the relationship between the Crown Prince and the Eldest Princess played an important role in the story, showing the struggle and choice between power and love. The search results did not provide any clear information on how the Qing Emperor had found out about their affair. Therefore, I am not clear about the specific plot of the Crown Prince and Eldest Princess in the original novel.

The Eldest Princess and the Crown Prince happened in the sixth volume, chapter 86, of the novel " Celebrating Years ".

In the original novel," Celebrating Years," there was a special relationship between the Eldest Princess Li Yunrui and the Crown Prince Li Chengqian. The Crown Prince persuaded the Eldest Princess to sacrifice herself in exchange for the peace of the Crown Prince's family and prevent the outbreak of war. However, their affair was eventually exposed by Fan Xian. After the Qing Emperor learned of it, he deposed the Crown Prince and placed the Eldest Princess under house arrest. In the end, the Crown Prince and Eldest Princess chose to commit suicide to end their fate. Therefore, according to the information provided, the Eldest Princess and the Crown Prince in the original novel ended up committing suicide.

The Eldest Princess and the Crown Prince happened in the sixth volume, chapter 86, of the novel " Celebrating Years ".

The Eldest Princess and the Crown Prince's side story referred to the plot between the Crown Prince and the Eldest Princess in the novel or the TV series " Celebrating Years." The specific plot happened in the sixth volume of the novel, chapter 86, and also appeared in the 22nd episode of the TV series. In this plot, the Crown Prince persuaded the Eldest Princess to sacrifice herself in exchange for the peace of the Crown Prince's family to avoid…