In many fanfictions, the scenario of Naruto and Itachi killing the Uchiha clan is a very interesting but also controversial topic. One aspect could be the change in Naruto's character. Usually, Naruto stands for justice and protecting others. If he were involved in such a massacre, it would be a huge deviation from his original character. Maybe in the fanfiction, there could be some extreme situations that force him to do so, like being mind - controlled or having some false information.
The person who had ordered Si Lili to kill Fan Xian during the Qing years was Lin Gong. Lin Gong was the mastermind behind Fan Xian's assassination. He controlled Northern Qi's spy network and arranged for Cheng Jushu to assassinate Fan Xian on Niulan Street. Si Lili had also admitted this when she was interrogated by Fan Xian.
Lin Gong's assassination of Fan Xian was ordered by the Eldest Princess, Li Yunrui. In his view, it was basically impossible for Fan Xian to truly control the wealth of the palace treasury. Fan Xian's enemy was the future Emperor, the Crown Prince. After Lin Gong passed away, Minister Lin found Fan Xian and brought him to his study. He showed Fan Xian Lin Gong's calligraphy from when he was a child. When Lin Gong was eight or nine years old, he was already very good at calligraphy and had great ambitions. He hoped to make great achievements in the future and bring glory to his family. Lin Gong knew from a very young age that his elder brother was a fool and his younger sister was a phthisis patient. As the only healthy person in the family and a male, he had to live for the whole family. It was a very heavy responsibility. Before Fan Xian had appeared, he had relied on the Crown Prince and Eldest Princess. Later, the Qing Emperor arranged the marriage between Lin Wan 'er and Fan Xian. Only then did things change a little. However, Lin Gong did not know the truth about Fan Xian's background.
In some fanfictions, a possible motivation for Naruto could be to prevent a greater evil. Maybe he was tricked into believing that the Uchiha clan was about to start a war that would destroy the entire ninja world. So, he thought that by taking part in killing the clan, he could save more lives in the long run.
Cheng Jushu received Lin Gong's instructions to kill Fan Xian. Lin Gong was one of the characters in the Qing Dynasty. He obtained the token to control Cheng Jushu and smuggled him into the city. The reason Lin Gong had ordered Cheng Jushu to kill Fan Xian was because he didn't want Fan Xian to marry his sister, Lin Wan 'er. At the same time, it was to prevent Fan Xian from taking over the power of the palace treasury. In addition, the Second Prince and Eldest Princess also participated in the plan to assassinate Fan Xian. Thus, it could be concluded that Lin Gong was the mastermind behind Cheng Jushu's orders to kill Fan Xian.
Lin Gong was the one who ordered Cheng Jushu to assassinate Fan Xian. Lin Gong was Lin Wan 'er's older brother, and also the Crown Prince and Eldest Princess's man. Fan Xian had come to the capital to snatch the Eldest Princess 'palace treasury and marry Lin Gong's sister, Lin Wan' er. This made Lin Gong very angry. Thus, he arranged for Cheng Jushu to assassinate Fan Xian on Niulan Street.
Lin Gong was the one who ordered Cheng Jushu to kill Fan Xian. Lin Gong obtained the token to control Cheng Jushu and smuggled him into the city. The reason he had ordered Cheng Jushu to kill Fan Xian was because he did not want Fan Xian to marry his sister, Lin Wan 'er.
Cheng Jushu had been instructed by Lin Gong to kill Fan Xian. Lin Gong was one of the characters in the Qing Dynasty. He obtained the token to control Cheng Jushu and smuggled him into the city. The reason Lin Gong had ordered Cheng Jushu to kill Fan Xian was because he didn't want Fan Xian to marry his sister, Lin Wan 'er. At the same time, it was to prevent Fan Xian from taking over the power of the palace treasury. In addition, the Second Prince and Eldest Princess also participated in the plan to assassinate Fan Xian. Thus, it could be concluded that Lin Gong was the mastermind behind Cheng Jushu's orders to kill Fan Xian.