There were many explanations and speculations about why Yan Bingyun wanted to kill Fan Xian in Joy of Life. One explanation was that Yan Bingyun had killed Fan Xian for the benefit of the Qing Kingdom. Fan Xian had discovered the collusion between the Second Prince and Eldest Princess in Northern Qi, as well as their corruption. Yan Bingyun might have thought this was bad for the Qing Kingdom, so he had chosen to kill Fan Xian. Another explanation was that Fan Xian and Yan Bingyun had discussed this plan beforehand. In order to ensure the stability of the Qing Kingdom, Fan Xian pretended to be assassinated by Yan Bingyun so that Yan Bingyun could become Fan Xian's spy. Another explanation was that Yan Bingyun, as the person in charge of secret intelligence in the Overwatch Council, did not want to see chaos in the Qing Kingdom, so he chose to kill Fan Xian. However, the specific reason was not clearly stated in the search results provided. Therefore, there was no conclusive answer to the question of why Yan Bingyun wanted to kill Fan Xian.

Yan Bingyun did not kill Fan Xian. In the original work of " Celebrating Years," Yan Bingyun's final sword pierced Fan Xian's abdomen, but Fan Xian did not die. In the TV series, the plot of Yan Bingyun assassinating Fan Xian was different from the original. After Fan Xian fell to the ground and spat out blood, Yan Bingyun told Fan Xian that all of this was for the Qing Kingdom. Only then did Fan Xian understand that this was a play between the two.
Yan Bingyun had not truly killed Fan Xian. In the plot, Yan Bingyun stabbed Fan Xian, but Fan Xian did not die. Instead, he was saved. Yan Bingyun's goal in stabbing Fan Xian was to gain the Second Prince's trust and protect Fan Xian's life. Fan Xian later decided to return to Jingdou to investigate the Second Prince and Eldest Princess 'behind-the-scenes instigation. Therefore, based on the information provided, it could be concluded that Yan Bingyun did not kill Fan Xian.
Fan Xian was not killed by Yan Bingyun in Joy of Life. Although the plot of Yan Bingyun assassinating Fan Xian appeared in the TV series, this was added to the suspense in the process of adapting the plot. The purpose was to make the audience look forward to the next season. According to the novel's original work and analysis, Fan Xian had only been stabbed once, but there was no obvious death. Thus, Yan Bingyun did not truly kill Fan Xian.
The answer to the question in Joy of Life about whether Yan Bingyun had killed Fan Xian was not clear. Some search results indicated that Fan Xian had not been killed by Yan Bingyun, but had been struck by the Qing Emperor. Other search results mentioned that Yan Bingyun had stabbed Fan Xian, but it was not clear whether Fan Xian was dead or not. Because he had not provided any conclusive information, it was impossible to determine if Yan Bingyun had killed Fan Xian.
There were different opinions and explanations on whether Yan Bingyun had killed Fan Xian. Some search results indicated that Yan Bingyun had stabbed Fan Xian in the TV series Joy of Life, but it did not clearly indicate whether Fan Xian was dead or not. Other search results mentioned that Fan Xian had not been killed by Yan Bingyun, but had been stabbed. Therefore, based on the information provided, it was impossible to determine whether Yan Bingyun had killed Fan Xian.
There was currently no definite answer to the question of whether Yan Bingyun had killed Fan Xian in Joy of Life. In the plot, Yan Bingyun stabbed Fan Xian with a knife. Fan Xian fell to the ground and closed his eyes, but it was still unknown whether he was really dead. Some netizens speculated that Yan Bingyun and Fan Xian had discussed a plan to fake their deaths in advance to deceive the Second Prince. The scriptwriter, Wang Juan, also said that the reason for arranging the plot of " Yan Bingyun killing Fan Xian " needed to be revealed in the second season. Therefore, we cannot be sure if Yan Bingyun really killed Fan Xian.
There was no clear answer as to why Yan Bingyun had killed Fan Xian. Some of the answers mentioned that Fan Xian and Yan Bingyun had discussed this plan beforehand. Fan Xian chose to fake his death to ensure the stability of the Qing Kingdom. In addition, there were also people who believed that this was Fan Xian's plan. They had come to some sort of agreement that the goal was to protect Qing Kingdom from turmoil. However, these answers were only the audience's guesses. The real answer might need to be revealed in the second season. Therefore, according to the information provided, I am unable to determine the exact reason why Yan Bingyun killed Fan Xian.
The reason Yan Bingyun had killed Fan Xian was a plan the two had discussed beforehand. Fan Xian pretended to be dead. This way, he could protect Fei Jie, Fan Sizhe, and Teng Zijing's son, whom the Second Prince had used to threaten Fan Xian. Before Fan Xian went to Northern Qi, he had obtained a precious robe that could protect him from the damage of a blade, so even if he had been struck by Yan Bingyun's sword, he would be safe and sound. The specific reason might need to be further understood in other materials.
There were different explanations and speculations about why Yan Bingyun killed Fan Xian in Joy of Life. One explanation was that Yan Bingyun had never trusted Fan Xian. He was very wary of Fan Xian, so he took the opportunity to kill Fan Xian without having to take the blame. The other explanation was that Yan Bingyun wanted to avenge the Eldest Princess because he and his father were on the Eldest Princess 'side. Another explanation was that Fan Xian and Yan Bingyun had discussed this plan in advance. In order to ensure the stability of the Qing Kingdom, Fan Xian pretended to be assassinated by Yan Bingyun so that Yan Bingyun could become Fan Xian's spy. However, there was no definite answer yet.
Regarding the question of why Yan Bingyun wanted to kill Fan Xian in " Celebrating Years," there were several possible situations. One was that Yan Bingyun had killed Fan Xian for the sake of the Qing Kingdom. Fan Xian had discovered the truth of the Second Prince and Eldest Princess 'collusion and their corrupt behavior. Yan Bingyun was worried that this would be detrimental to the Qing Kingdom, so he chose to kill Fan Xian. Another explanation was that Yan Bingyun wanted to protect the stability of the Qing Kingdom. Fan Xian had discovered the collusion between the Second Prince and Eldest Princess in Northern Qi, as well as their illegal actions. Yan Bingyun might think that Fan Xian's actions would be detrimental to the Qing Kingdom, so he chose to stab Fan Xian to protect the safety of the Qing Kingdom. In summary, the reason Yan Bingyun killed Fan Xian was probably for the interests and stability of the Qing Kingdom.
There were many explanations for why Yan Bingyun killed Fan Xian. One explanation was for the stability of the Qing Kingdom and Fan Xian's escape. Fan Xian knew that the Second Prince would chase after him, so they had discussed this plan beforehand. They would let Yan Bingyun stab him so as to give him a chance to escape and let Yan Bingyun gain the Second Prince's trust. However, the specific details and motives behind it were not clearly explained in the search results provided. Therefore, there was no conclusive answer to the question of why Yan Bingyun killed Fan Xian.