The truth Si Lili told Fan Xian was that the mastermind behind the Niulan Street assassination was Lin Gong.
The truth Si Lili told Fan Xian was that the mastermind behind the Niulan Street assassination was Lin Gong. Fan Xian wanted to avenge Si Lili, but he also wanted to protect Lin Gong, because Lin Gong was the second brother of Fan Xian's fiancée, Lin Wan 'er. In order to protect Lin Gong's safety, Si Lili would rather be tortured than betray Fan Xian. This truth put Fan Xian in a difficult position. He needed to choose between protecting his friends and dealing with his enemies.
The truth Si Lili told Fan Xian was that the mastermind behind the Niulan Street assassination was Lin Gong.
In prison, Si Lili told Fan Xian that she was a spy from Northern Qi and had been discovered by the nobles in the capital. They threatened Si Lili to have her mobilize Cheng Jushu, who was hiding outside the city, to lie in ambush on Niulan Street, waiting to assassinate Fan Xian who was passing by. She also told Fan Xian that the mastermind behind the Niulan Street assassination was Lin Gong. Fan Xian wanted to kill Lin Gong for revenge, but Wu Zhu stopped him and killed Lin Gong for him.
The truth behind Fan Xian's investigation of Si Lili was that Si Lili had told Fan Xian that the mastermind behind the Niulan Street assassination was Lin Gong. Fan Xian wanted to avenge Si Lili, but he also wanted to protect Lin Gong, because Lin Gong was the second brother of Fan Xian's fiancée, Lin Wan 'er. In order to protect Lin Gong's safety, Si Lili would rather be tortured than betray Fan Xian. Fan Xian finally learned the truth and avenged Si Lili.
The truth behind Fan Xian's investigation of Si Lili was that the mastermind behind the Niulan Street assassination was Lin Gong. Fan Xian used modern interrogation techniques to threaten and intimidate Si Lili, including telling her that her life and death were in his hands, threatening her with a lifetime of house arrest and dark loneliness as punishment, and throwing out a few deadly pills in an attempt to lure her into taking them. Under Fan Xian's threat, Si Lili compromised and told him the truth. However, Fan Xian's interrogation process was not described in detail in the search results provided.
In the 17th episode of " Celebrating Years," Si Lili told Fan Xian that Lin Gong was the one.
The reason Si Lili told Fan Xian the truth was to protect him. In the plot, Si Lili told Fan Xian that the mastermind of the Niulan Street assassination was Lin Gong, which triggered Fan Xian's desire for revenge. In order to protect Fan Xian from being implicated and hurt, Si Lili and Fan Xian made a deal. Fan Xian would protect her from death and not let her suffer torture. In return, she would tell Fan Xian the truth and promise not to reveal what Fan Xian knew to others. Thus, Si Lili told Fan Xian the truth to protect his safety.
The person Si Lili told Fan Xian was Lin Gong. Lin Gong was the mastermind behind the Niulan Street assassination. He had captured Cheng Jushu, who was lurking outside the capital, and forced Si Lili to hand over her spy token. After Fan Xian learned of this news, he decided to avenge Teng Zijing, but Wu Zhu stopped him and personally killed Lin Gong. Lin Gong's death aroused the suspicion of the Crown Prince and Minister Lin, and Fan Xian became the focus of the investigation.