In Joy of Life, the relationship between the Crown Prince and the Eldest Princess was that of an aunt and nephew. The Crown Prince was the Crown Prince, the heir to the throne, and the Eldest Princess was the Princess Consort's sister, the Crown Prince's aunt. They had relied on each other since they were young, valued each other, and had deep feelings for each other. Even though the Crown Prince had developed inappropriate feelings for the Eldest Princess, the Eldest Princess did not think highly of the Crown Prince. She was more ambitious. The relationship between the Crown Prince and the Eldest Princess was discovered by the Qing Emperor in the play. The Qing Emperor used his suspicious personality and, with the help of the young eunuch Hong Zhu and the others, exposed their private affairs to the Qing Emperor.

In Joy of Life, the eldest princess Li Yunrui and the crown prince Li Chengqian were siblings.
The relationship between the Eldest Princess and the Crown Prince was that of an auntie and nephew. The Crown Prince was the Crown Prince, the heir to the throne, and the Eldest Princess was the Princess Consort's sister, the Crown Prince's aunt. They had relied on each other since they were young, valued each other, and established a deep relationship. Even though their relationship in the movie was not ordinary, they were not related by blood.
The relationship between the Eldest Princess and the Crown Prince was that of an auntie and nephew. The Crown Prince was the Crown Prince, the heir to the throne, and the Eldest Princess was the Princess Consort's sister, the Crown Prince's aunt. They had relied on each other since they were young, valued each other, and established a deep relationship. However, their relationship ultimately ended in failure. The Crown Prince and Eldest Princess conspired to rebel and were stopped by Fan Xian. They were exposed by the Ye family and could only choose to commit suicide.
The relationship between the Eldest Princess and the Crown Prince in Joy of Life was that of an auntie and a nephew. The Crown Prince was the Crown Prince, the heir to the throne, and the Eldest Princess was the Princess Consort's sister, the Crown Prince's aunt. They had relied on each other since they were young, valued each other, and established a deep relationship. However, there were also some secrets between them, including the Eldest Princess and the Crown Prince's personal relationship. According to the results of the search, the Eldest Princess and Crown Prince's affair was eventually known by the Qing Emperor, causing the Crown Prince to be deposed and the Eldest Princess to be imprisoned. In the end, she chose to commit suicide. Therefore, their relationship ended in tragedy.
In the original story of Joy of Life, there was a special relationship between the Eldest Princess and the Crown Prince. It was not just a relationship between a nephew and an aunt. 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 was furious and banished the Eldest Princess from the capital. The Crown Prince was sent to Nanzhao.
In Joy of Life, the Eldest Princess Li Yunrui and the Crown Prince Li Chengqian had a special relationship. They were not only nephews and aunts, but they also had a relationship that transcended ethics. For the sake of family peace, the Crown Prince persuaded the Eldest Princess to sacrifice herself to prevent a war from breaking out. However, their affair was eventually exposed by Fan Xian. After the Qing Emperor learned of it, he was furious and carried out a bloodbath in the Eastern Palace. Therefore, the relationship between the eldest princess and the crown prince in Joy of Life ended in tragedy. The specific plot and details needed to be described in the novel.
In Joy of Life, the relationship between the Eldest Princess and the Crown Prince was a special and intimate one. They had relied on each other since they were young, valued each other, and established a deep relationship. The Crown Prince was infatuated with the Eldest Princess and had even drawn a painting of a beauty. The woman in the painting was the Eldest Princess. However, their relationship was eventually exposed by Fan Xian, causing the Crown Prince to be deposed. The Crown Prince chose to commit suicide. The details were not clearly described, but after the Qing Emperor found out about their private affair, it triggered a series of events.
In Joy of Life, the relationship between the Eldest Princess and the Crown Prince was that of an aunt and nephew. The Crown Prince was the Crown Prince, the heir to the throne, and the Eldest Princess was the Princess Consort's sister, the Crown Prince's aunt. They had relied on each other since they were young, valued each other, and established a deep relationship. They trusted each other and treated each other well. However, in the drama, their relationship did not develop as simply as the relationship between an ordinary aunt and nephew. There were complicated feelings and power games between them, including personal affairs and conspiracy to rebel. The Crown Prince had a deep affection for the Eldest Princess, and the Eldest Princess also had special feelings for the Crown Prince. Their private affair was eventually known by the Qing Emperor, triggering a bloody case in the palace. In short, in Joy of Life, the relationship between the Eldest Princess and the Crown Prince was complicated and confusing.
In Joy of Life, the relationship between the Eldest Princess and the Crown Prince was that of an aunt and nephew. The Crown Prince was the Crown Prince, the heir to the throne, and the Eldest Princess was the Princess Consort's sister, the Crown Prince's aunt. They had relied on each other since they were young, valued each other, and established a deep relationship. Although their relationship in the drama was not as simple as the relationship between an ordinary aunt and nephew, there were complicated feelings and power games, including personal affairs and conspiracy to rebel. The Crown Prince had a deep affection for the Eldest Princess, and the Eldest Princess also had special feelings for the Crown Prince. Their private affair was eventually known by the Qing Emperor, triggering a bloody case in the palace. In short, in Joy of Life, the relationship between the Eldest Princess and the Crown Prince was complicated and confusing.
In the original story of Joy of Life, the relationship between the Crown Prince and the Eldest Princess was special. It was not just the relationship between a nephew and an aunt. 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 private affair was eventually exposed by Fan Xian, causing the Qing Emperor to be furious and wash the Eastern Palace with blood. The Eldest Princess and 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.
In Joy of Life, the Eldest Princess Li Yunrui was the Qing Emperor's younger sister, and the Crown Prince was the Qing Emperor's son. Thus, the Eldest Princess Li Yunrui was the Crown Prince's aunt.