The First Prince of Joy of Life drew the Eldest Princess, Li Yunrui. Crown Prince Li Chengqian had drawn a portrait of a lady without a face. According to the plot and the relationship between the Crown Prince and the Eldest Princess, it could be inferred that the Crown Prince liked the Eldest Princess. The Eldest Princess had always supported the Crown Prince, and there was a shadow of the Qing Emperor in the Crown Prince's smile. Therefore, it could be confirmed that the First Prince of Joy of Life had drawn the Eldest Princess, Li Yunrui.

The First Prince of Joy of Life drew the Eldest Princess, Li Yunrui.
The eldest princess and the eldest prince had some interaction and cooperation in the play, but no exact ending information was provided. Thus, I don't know how the relationship between the Eldest Princess and the Eldest Prince will develop.
The Eldest Prince and the Eldest Princess were in the same group in Joy of Life. Together, they plotted a series of conspiracies, including using the Crown Prince's banner to do bad things, smuggling activities, embezzling money, and so on. The Eldest Princess had an affair with the Eldest Prince and formed an alliance with him. However, their plot was eventually exposed, causing the Eldest Princess to go crazy and plan to assassinate the Qing Emperor. In the end, she committed suicide. The Great Prince rebelled, but was ultimately defeated and killed by the Qing Emperor. Therefore, the Eldest Prince and the Eldest Princess were in cahoots in Joy of Life.
The outcome of the Eldest Prince and the Little Prince could not be determined based on the information provided.
The Eldest Prince likes the Eldest Princess. In " Celebrating Years," there was a love line between the Eldest Prince and the Eldest Princess. They accepted and respected each other, showing their gentle and innocent side. Although they were in an awkward position and were not favored, they all yearned to escape the palace and live a free life. The Eldest Prince had a good impression of the Eldest Princess and had planned a series of conspiracies together. Even though these plots were eventually exposed, causing the Eldest Princess to go crazy and plan to assassinate the Qing Emperor, and eventually commit suicide, this showed that the Great Prince had a good impression of the Eldest Princess. Thus, it could be said that the Eldest Prince liked the Eldest Princess.
There were different descriptions of the ending of the First Prince and the Eldest Princess in Joy of Life, and it was impossible to determine the exact answer. Some of the documents mentioned that the First Prince chose to commit suicide because he realized that he was being used and fell in love with the Eldest Princess. However, other documents mentioned that the First Prince was still stationed in Dongyi, and that he was still alive and in control of the army. As for the Eldest Princess 'ending, the document mentioned that she committed suicide during the Jingdou rebellion. Due to the existence of different descriptions, it was impossible to determine the exact ending of the Eldest Prince and Eldest Princess.
The Eldest Prince likes the Eldest Princess. According to the descriptions in document 1 and document 4, there was an affair between the Eldest Prince and the Eldest Princess, and the Eldest Prince had a good impression of the Eldest Princess. They had a common characteristic. They did not like to participate in power struggles. They yearned to escape the palace and live a free life. Their identities were rather awkward, they were not favored, and they were tired of family struggles. Thus, it could be said that the Eldest Prince liked the Eldest Princess.
The Crown Prince and Eldest Princess ended up committing suicide. In " Joy of Life," the Crown Prince and the Eldest Princess had a special relationship. It was not just a relationship between a nephew and an aunt. In order to take revenge on the Eldest Princess, Fan Xian told the Emperor about the relationship between the Crown Prince and the Eldest Princess and planned an incident to expose them. The Emperor's feelings for the Eldest Princess were also a little unusual. After learning of the relationship between the Crown Prince and the Eldest Princess, he placed the Eldest Princess under house arrest and prepared to abolish the Crown Prince. The Eldest Princess secretly joined forces with the Qin family and the Ye family to plan to kill the Qing Emperor and let the Crown Prince succeed the throne. However, after the plan was leaked, it failed. In the end, the Eldest Princess and the Crown Prince chose to commit suicide. The Eldest Princess had another identity. She was Lin Wan 'er's mother.
In Joy of Life, the Crown Prince and the Eldest Princess had an intimate relationship. The Eldest Princess was the Crown Prince's aunt, and the relationship between the two was not allowed in ethics. The woman in the Crown Prince's painting of a beauty was the Eldest Princess. Their affair was eventually exposed by Fan Xian. When the Qing Emperor learned of it, he was furious and banished the Eldest Princess from the capital. The Crown Prince was sent to Nanzhao. The Qing Emperor's feelings for the Eldest Princess were complicated. The Eldest Princess loved the Qing Emperor, and the Qing Emperor was willing to give her power and status. However, when he learned of the relationship between the Eldest Princess and the Crown Prince, the Qing Emperor felt that he had lost control. His trust and pity for the Eldest Princess was also affected.