In the end, the Second Prince wanted to kill Fan Xian because Fan Xian was unwilling to reconcile and did not want to rely on his sect. The Second Prince had always done things ruthlessly. Since Fan Xian was unwilling to stand on the same boat as him, he could only send someone to kill Fan Xian. However, Fan Xian was not killed by the Second Prince because Yan Bingyun had stabbed Fan Xian in the back to protect him. Yan Bingyun was not one of the Second Prince's men. He did this out of his own decision and consideration for protecting Fan Xian. The feud between Fan Xian and the Second Prince had just begun.

In the end, the Second Prince wanted to kill Fan Xian because Fan Xian was unwilling to reconcile and did not want to rely on his sect. The Second Prince had always done things ruthlessly. Since Fan Xian was unwilling to stand on the same boat as him, he could only send someone to kill Fan Xian. However, Fan Xian was not killed by the Second Prince because Yan Bingyun had stabbed Fan Xian in the back to protect him. Yan Bingyun's choice was Fan Xian. He hadn't stabbed Fan Xian's vital points, and Fan Xian had zhenqi protecting his body. He definitely wouldn't die. The reason the Second Prince had killed Fan Xian was to fight for the throne. Fan Xian was the son of the Qing Emperor and Ye Qingmei. He was the person most likely to ascend the throne. The Second Prince might have known Fan Xian's background long ago and thought he was his rival. Fan Xian's existence was a threat to the Second Prince, so he decided to get rid of Fan Xian.
The last person to kill Fan Xian was Lin Gong. Lin Gong was Lin Wan 'er's brother. He had arranged for Cheng Jushu to assassinate Fan Xian because he didn't want Fan Xian to marry his beloved Lin Wan' er. In addition, the Qing Emperor and Eldest Princess also had a motive to kill Fan Xian. The Qing Emperor killed Fan Xian because he had killed Fan Xian's mother and used Fan Xian to find the secrets of the Temple. The Eldest Princess also hoped to destroy Fan Xian and was unwilling to give up the power of the palace treasury. Thus, the people who wanted to kill Fan Xian in the end included Lin Gong, the Qing Emperor, and the Eldest Princess.
There were several possible scenarios for Joy of Life's final attempt to kill Fan Xian. One was the Qing Emperor. He had killed Fan Xian's mother when Fan Xian was born and left Fan Xian behind to use him to find the secrets of the Temple. There was also Lin Gong, the Second Prince, and the Eldest Princess. They all had the motive and action to assassinate Fan Xian. Lin Gong had obtained the token to control Cheng Jushu and had smuggled him into the city. The Second Prince did not want Fan Xian to take charge of the palace treasury. The Eldest Princess needed to remove all obstacles to assist the Second Prince in ascending the throne. However, the result of who would kill Fan Xian in the end did not provide a clear answer.
The last person to kill Fan Xian in his remaining years was the Qing Emperor. The Qing Emperor killed Fan Xian's mother, Ye Qingmei, and left behind the secret that Fan Xian had used him to find the Temple. The Qing Emperor had always guided Fan Xian to act according to his plan until Fan Xian successfully went to Northern Qi. In addition, the Eldest Princess and Lin Gong also participated in the assassination of Fan Xian. However, in the end, the Qing Emperor was killed by Wu Zhu and Fan Xian successfully escaped.
The reason the Second Prince wanted to kill Fan Xian was that Fan Xian was the son of the Qing Emperor and Ye Qingmei. He was the person most likely to ascend the throne and posed a threat to the Second Prince. The Second Prince might have known about Fan Xian's background long ago and had always wanted to kill him. The Second Prince used the people around Fan Xian as blackmail to force Fan Xian to give up pursuing his and the Eldest Princess 'smuggling. Fan Xian chose the strategy of faking his death to escape the pursuit. He also planned to resurrect through faking his death while secretly gathering evidence of the Eldest Princess and the Second Prince's smuggling. The Second Prince did not believe that Fan Xian was dead. Once he learned of Fan Xian's fake death, he hurriedly returned to the capital to save him. He wanted to capture Fan Xian and use this to threaten him. Fan Xian had successfully returned to the capital and exposed the collusion between the Second Prince and the Eldest Princess. Fan Xian's existence was a threat to the Second Prince, so he had always wanted to kill Fan Xian.
In Joy of Life, the reason the Second Prince wanted to kill Fan Xian was because Fan Xian was unwilling to reconcile and didn't want to rely on him. The Second Prince had always done things ruthlessly. Since Fan Xian was unwilling to stand on the same boat as him, he could only send someone to kill Fan Xian. However, Fan Xian was not killed by the Second Prince because Yan Bingyun had stabbed Fan Xian in the back to protect him. Yan Bingyun's choice was Fan Xian. He had not stabbed Fan Xian's vital points, and Fan Xian had zhenqi protecting his body, so Fan Xian did not die. The Second Prince wanted to kill Fan Xian in order to fight for the throne. Fan Xian was the son of the Qing Emperor and Ye Qingmei. He was the person most likely to ascend the throne. There were other people in Joy of Life who wanted to kill Fan Xian, including Lin Gong and the Eldest Princess. They all had their own goals and interests to consider. In short, in Joy of Life, the Second Prince wanted to kill Fan Xian for his own benefits and power.
According to reference 1 and 3, the Second Prince had ordered Lin Token to kill Fan Xian, but Wan 'er did not know. During Fan Xian's wedding, the Second Prince had told Wan 'er of Lin Token:1841Token:375's death, attempting to make Wan' er kill Fan Xian in anger.
The reason the Second Prince killed Fan Xian was because Fan Xian posed a threat to his throne. Fan Xian was the son of the Qing Emperor and Ye Qingmei, so he was naturally the easiest person to ascend the throne. The Second Prince might have known about Fan Xian's background long ago, so he had always wanted to kill him. In addition, the Second Prince showed a ruthless side in the play, similar to the Qing Emperor. In the play, the Second Prince built a pavilion on the street and said that he wanted to see Fan Xian off, but then he tore down the pavilion, hinting that he and Fan Xian were no longer friends. The Second Prince felt that Fan Xian was a great enough threat to him, so he decided to kill him.
The reason the Second Prince killed Fan Xian was for the throne. Fan Xian was the son of the Qing Emperor and Ye Qingmei. He was the easiest person to ascend to the throne. The Second Prince might have known about Fan Xian's background long ago, so he had always wanted to kill Fan Xian. On the surface, the Second Prince was friendly to Fan Xian, but behind his back, he had always been plotting to kill him. He colluded with the Eldest Princess and used her power to control the palace treasury to carry out smuggling activities and corrupt money. When Fan Xian left Northern Qi, he learned of these inside stories. In order to cover up the truth, the Second Prince sent people to threaten Fan Xian. The Second Prince's goal was to eliminate Fan Xian's threat to his ascension to the throne.
The reason the Second Prince killed Fan Xian was to fight for the throne. Fan Xian was the son of the Qing Emperor and Ye Qingmei. He was the person most likely to ascend the throne. The Second Prince might have known Fan Xian's background long ago and thought he was his rival. The specific details and motives might require reading the original work to get a more accurate answer.