The masterminds behind the assassination of Fan Xian in Joy of Life were Lin Gong, the Eldest Princess, and the Second Prince. Lin Gong was one of the masterminds behind Fan Xian's assassination attempt on Niulan Street. He obtained the token to control Cheng Jushu and smuggled him into the city. The Eldest Princess was the person in charge of the palace treasury. She might have hoped to kill Fan Xian to cut off the possibility of the Qing Emperor letting Fan Xian inherit the palace treasury. The Second Prince also had a motive because he did not want Fan Xian to control the palace treasury. These three people all had their own goals and motives. Together, they planned to assassinate Fan Xian.

Yes, Fan Xian had indeed killed Lin Gong. Lin Gong was the mastermind behind the Niulan Street assassination that the Qing Emperor had sent. Fan Xian's guard, Teng Zijing, had died protecting him. Lin Gong was also the brother of Fan Xian's fiancée, Lin Wan 'er. In order to avenge Teng Zijing, Fan Xian was in a dilemma. Wu Zhu helped him kill Lin Gong. So, according to the information provided, Fan Xian had killed Lin Gong.
The information you provided is wrong. In the original work of Joy of Life, Fan Xian killed Lin Gong, not Lin Gong. In the 18th episode of the TV series " Joy of Life," the Eldest Princess Li Yunrui planned the assassination of Fan Xian on Niulan Street behind the scenes. After Fan Xian was assassinated, the Crown Prince and the Second Prince confronted each other in the Royal Palace. Both sides were at daggers drawn. Eldest Princess Li Yunrui revealed the secret of the Crown Prince and Si Lili to the Second Prince in an attempt to provoke the Second Prince's anger. The Crown Prince exposed the fact that the Eldest Princess and Lin Gong had conspired to assassinate Fan Xian. At the same time, he pointed out the Eldest Princess and Zhuang Mohan's conspiracy to frame Fan Xian. The Eldest Princess was speechless and accused the Crown Prince emotionally. The Second Prince took the opportunity to fan the flames, further angering the Eldest Princess, causing her to have an emotional breakdown. Not satisfied with watching dramas? Interested in the main character of the main characters, Ye Qingmei? Please click on the link below to see the wonderful content of Ye Qingmei's Diary!
In the end, Minister Lin learned that Fan Xian had killed Lin Gong. In episode 19 of Joy of Life, Prime Minister Lin told Fan Xian that Lin Gong was the mastermind behind the Niulan Street assassination and tested Fan Xian's attitude toward the Lin family. Fan Xian pretended not to know about this and didn't understand why Lin Gong wanted to kill him, but Minister Lin felt that Fan Xian's reaction was not fake. Thus, Minister Lin finally learned that Fan Xian had killed Lin Gong.
In the end, Minister Lin knew that Fan Xian had killed Lin Gong. In episode 19 of Joy of Life, Prime Minister Lin told Fan Xian that Lin Gong was the mastermind behind the Niulan Street assassination and tested Fan Xian's attitude toward the Lin family. Fan Xian pretended not to know about this and didn't understand why Lin Gong wanted to kill him, but Minister Lin felt that Fan Xian's reaction was not fake. Thus, Minister Lin finally knew that Fan Xian had killed Lin Gong.
In the end, Minister Lin knew that Fan Xian had killed Lin Gong. In episode 19 of Joy of Life, Prime Minister Lin told Fan Xian that Lin Gong was the mastermind behind the Niulan Street assassination and tested Fan Xian's attitude toward the Lin family. Fan Xian pretended not to know about this and didn't understand why Lin Gong wanted to kill him, but Minister Lin felt that Fan Xian's reaction was not fake. Thus, Minister Lin finally learned that Fan Xian had killed Lin Gong.
In the end, Minister Lin knew that Fan Xian had killed Lin Gong. In episode 19 of Joy of Life, Prime Minister Lin told Fan Xian that Lin Gong was the mastermind behind the Niulan Street assassination and tested Fan Xian's attitude toward the Lin family. Fan Xian pretended not to know about this and didn't understand why Lin Gong wanted to kill him, but Minister Lin felt that Fan Xian's reaction was not fake. Thus, Minister Lin finally learned that Fan Xian had killed Lin Gong.
In the end, Minister Lin knew that Fan Xian had killed Lin Gong. In episode 19 of Joy of Life, Prime Minister Lin told Fan Xian that Lin Gong was the mastermind behind the Niulan Street assassination and tested Fan Xian's attitude toward the Lin family. Fan Xian pretended not to know about this and didn't understand why Lin Gong wanted to kill him, but Minister Lin felt that Fan Xian's reaction was not fake. Thus, Prime Minister Lin finally knew that Fan Xian had killed Lin Gong.
In the end, Minister Lin knew that Fan Xian had killed Lin Gong. In episode 19 of Joy of Life, Prime Minister Lin told Fan Xian that Lin Gong was the mastermind behind the Niulan Street assassination and tested Fan Xian's attitude toward the Lin family. Fan Xian pretended not to know about this and didn't understand why Lin Gong wanted to kill him, but Minister Lin felt that Fan Xian's reaction was not fake. Thus, Minister Lin finally knew that Fan Xian had killed Lin Gong.
In the end, Minister Lin knew that Fan Xian had killed Lin Gong. In episode 19 of Joy of Life, Prime Minister Lin told Fan Xian that Lin Gong was the mastermind behind the Niulan Street assassination and tested Fan Xian's attitude toward the Lin family. Fan Xian pretended not to know about this and didn't understand why Lin Gong wanted to kill him, but Minister Lin felt that Fan Xian's reaction was not fake. Thus, Minister Lin finally knew that Fan Xian had killed Lin Gong.
In Joy of Life, Wu Zhu killed Lin Gong to protect Fan Xian. Lin Gong was the mastermind behind the Niulan Street assassination. He wanted to kill Fan Xian. Wu Zhu didn't want Fan Xian to be threatened, so he decided to kill Lin Gong for Fan Xian. In addition, Fan Xian liked Lin Wan 'er, and Teng Zijing was Fan Xian's good friend. If Teng Zijing avenged his friend, Fan Xian and Lin Wan' er's relationship would definitely break. Wu Zhu had helped Fan Xian kill Lin Gong to resolve the misunderstanding between him and Fan Xian. At the same time, it was to protect Fan Xian's relationship with Lin Wan 'er.