The reason the Second Prince targeted Fan Xian was to consolidate his power and fight for the throne. The Second Prince believed that Fan Xian had the support of the Inspection Council and the Qing Emperor, so he tried to rope Fan Xian in to increase his bargaining chips. He had met many times in private and tried to establish a cooperative relationship, showing the importance he attached to Fan Xian. In addition, the Second Prince also colluded with the Eldest Princess to secretly smuggle goods to earn profits. They planned to use them to raise the army and fight for the throne. Thus, the Second Prince's actions against Fan Xian could be seen as a strategy he adopted for his own interests and power.

The reason Fan Xian targeted the Second Prince was because the Second Prince posed a threat to Fan Xian. 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 about Fan Xian's background long ago and had always wanted to kill him. The specific motivation and background may need to be further read in the original work or other relevant materials to understand.
The reason Fan Xian targeted the Second Prince was because he had discovered that the Second Prince had colluded with Eunuch Dai and was suspected of corruption and bribery. By investigating the matter of the Inspectorate and the Cloud Dream Fish, Fan Xian was actually investigating the corruption of the Second Prince's group. He had chosen to attack a eunuch first in order to lead the trouble to the Second Prince and expose the Second Prince's crimes. Fan Xian's goal was to protect the Qing Emperor and the other princes and make them draw a clear line with the Second Prince. Fan Xian's actions displayed his wisdom and courage. He was not afraid of power and dared to expose the truth. Thus, Fan Xian targeted the Second Prince to protect the country's interests and justice.
The reason the Second Prince targeted Fan Xian was because Fan Xian's existence was a threat to him. 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, Fan Xian's identity as a prince might be revealed in the second season of the drama. Once it was made public, it would become the Second Prince's greatest threat, preventing him from ascending to the throne. However, the search results did not mention exactly why the Second Prince thought Fan Xian was a threat, or his specific plot and motives.
The reason the Second Prince targeted Fan Xian was because Fan Xian's existence was a threat to him. 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, Fan Xian's identity as a prince might be in the first part of the show…
The reason the Second Prince targeted Fan Xian was because Fan Xian's existence was a threat to him. 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. The search results did not provide a clear answer as to why the Second Prince felt threatened by Fan Xian.
Fan Xian was a prince. Fan Xian's identity had first been suspected when he had seen the letter Ye Qingmei had left him. Later, through Ku He's speculation and the little order Fan Xian had recited in the tavern, Fan Xian's identity had been exposed. In addition, the Great Prince had also become Fan Xian's backer. The alliance between Fan Xian and the Great Prince was the fruit of the seeds of goodwill Ye Qingmei had sown. Therefore, based on the information provided, it could be concluded that Fan Xian was a Prince.
Fan Xian was the Qing Emperor's son and also a hidden prince. When he first saw the letter that Ye Qingmei left for him, he began to doubt his identity and guessed that he might be a prince. Later, Fan Xian's true identity was revealed after the Qing Emperor was assassinated. This matter was led by the Great Grandmaster of Northern Qi, Ku He. Through his relationship with Fan Xian, Ku He had guessed that he was Ye Qingmei's child and had written to Fan Xian in advance to tell him that he was going to make this news public. Fan Xian's identity was revealed after the Hanging Temple incident. The Qing Emperor deeply believed in Fan Xian's loyalty and felt grateful to him. After Fan Xian's identity was revealed, he became the focus of everyone's attention, but he also faced more challenges and pressure.
Fan Xian was a prince. The Qing Emperor was Fan Xian's biological father, and Ye Qingmei was his mother. Although Fan Xian's identity had always been hidden, his true identity was the Qing Emperor's illegitimate son. He was also a prince who would never see the light of day. The Qing Emperor had never thought of restoring Fan Xian's status as a prince, but he valued and admired Fan Xian. Other documents also mentioned that Fan Xian was one of the Qing Emperor's favorite princes. He also had the support of the Fan and Lin families, which was enough for him to challenge the other princes without fear. Therefore, according to the information provided, Fan Xian was a prince.
Fan Xian was the Qing Emperor's illegitimate child. His identity could only be Fan Jian's illegitimate child. The Qing Emperor had never thought of restoring his status as a prince because Fan Xian was Ye Qingmei's son. This woman's power was too great and made the Qing Emperor afraid. Although the Qing Emperor was his biological father, he owed Fan Xian too much. The person Fan Xian owed the most was his adoptive father, Fan Jian. When Fan Xian was born, he was hunted down and taken out of the Royal Palace by Wu Zhu. It was Chen Pingping and Fan Jian who gave him a new identity and allowed him to survive. This new identity was Fan Jian's illegitimate son, Fan Xian.
Fan Xian was not recognized as a prince in Joy of Life, and the Qing Emperor did not officially recognize his status as a prince. Therefore, according to the information provided, Fan Xian was not the Qing Emperor's prince.