In the original work of Joy of Life and the TV series, although there were hints of an affair between the Crown Prince and the Eldest Princess, there was no direct description of their intimate scenes. The relationship between them was more obscure and complicated. The Eldest Princess was the Crown Prince's aunt (in the original novel, it was a biological aunt, and in the TV series, it was a foster aunt). The Crown Prince's feelings for the Eldest Princess were not ordinary. Many details showed that the person he loved might be the Eldest Princess, but the drama did not show their intimacy.

In the novel Joy of Life, the plot of the Eldest Princess and the Crown Prince having an affair appeared in chapter 129. In this chapter, the Eldest Princess Li Yunrui revealed to Fan Xian her personal relationship with the Crown Prince. She expressed that for the sake of power and status, she had no choice but to maintain this relationship with the Crown Prince and was already prepared to sacrifice herself for the Crown Prince. Fan Xian was shocked and disappointed after hearing this. He realized that the Eldest Princess's actions not only violated ethics, but also caused harm to the country and the people.
In Joy of Life, Princess Royal Li Yunrui and Prince Li Chengqian were lovers. Li Yunrui was the Eldest Princess of the Qing Kingdom, the Emperor's younger sister. She was scheming and ambitious. She would do anything to gain power. She had an affair with Crown Prince Li Gaoming. The two of them worked together to plot against Fan Xian and subvert the Qing Kingdom. Crown Prince Li Chengqian was the eldest son of the Qing Emperor. He had a weak personality and did not have his own opinions. He was used by Li Yunrui. He liked Lin Wan 'er, but in order to get the throne, he had to listen to Li Yunrui's arrangements.
In the TV series Joy of Life, the Eldest Princess Li Yunrui and the Crown Prince Li Chengqian had an affair. Their 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 depose the Crown Prince. In the end, the Crown Prince chose to commit suicide. The search results did not provide clear information on how the Qing Emperor had found out about their affair.
Joy of Life's plot of the Crown Prince and Eldest Princess took place in the sixth volume of the novel, chapter 86, and also appeared in the twenty-second episode of the TV series " Joy of Life." In this plot, the Crown Prince persuaded the Eldest Princess to sacrifice herself in exchange for peace in the Crown Prince's family and prevent war from breaking out. However, their affair was eventually learned by the Qing Emperor, causing the Eldest Princess to choose to commit suicide. The details of the plot could be found in the novel.
The Prince of Joy of Life was played by Zhang Haowei, and the Eldest Princess was played by Li Xiaoran.
The relationship between the Crown Prince and the Eldest Princess of Joy of Life took place in chapter 86 of the sixth volume of the novel. It also appeared in the 22nd episode of the TV series " Joy of Life." In this plot, the Crown Prince persuaded the Eldest Princess to sacrifice herself in exchange for peace in the Crown Prince's family and prevent war from breaking out. The specific chapter information could not be determined.
The plot of Joy of Life between the Crown Prince and the Eldest Princess took place in chapter 86 of the sixth volume of the novel. It also appeared in the 22nd episode of the TV series " Joy of Life." In this plot, the Crown Prince persuaded the Eldest Princess to sacrifice herself in exchange for peace in the Crown Prince's family and prevent war from breaking out. The specific chapter information could not be determined.
The story of the Elder Princess and the Crown Prince of Joy of Life took place in the sixth volume, chapter 86, of the novel Joy of Life, and also appeared in the twenty-second episode of the TV series Joy of Life. In this plot, the Eldest Princess used her beauty and charm to attract the Crown Prince, and the Crown Prince also fell into the swamp of emotions and could not extricate himself. 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 had complicated feelings for the Crown Prince. The specific chapter information could not be determined.
In Joy of Life, the relationship between the Eldest Princess and the Crown Prince was discovered in chapter 86 of volume 6.
In " Joy of Life," the relationship between Eldest Princess Li Yunrui and Crown Prince Li Chengqian was revealed by Fan Xian through a eunuch, Hong Zhu. With the help of Chen Pingping and Fan Xian, Hong Zhu used the Qing Emperor's suspicious personality to expose the Eldest Princess and Crown Prince's private affair to the Qing Emperor. When the Qing Emperor learned of this, he was furious and massacred the Eastern Palace. The Eldest Princess and Crown Prince were ultimately spared death, but the Eldest Princess was banished from the capital and the Crown Prince was sent to Nanzhao.