Si Lili revealed the truth of the night trial. She knew that this answer was the only bargaining chip she could use to save her life. She had been defeated by Fan Xian's psychological tactics and revealed the mastermind behind Fan Xian's assassination.

Si Lili was interrogated many times in the show. In the 17th episode of Joy of Life, Fan Xian locked Si Lili in a very small dungeon and threatened her to reveal the truth. However, Si Lili did not have the courage to commit suicide. She began to compromise and tell Fan Xian the truth. In addition, in episode 14, after Fan Xian escorted Si Lili into the capital, Yan Ruohai of the Inspection Council came forward to resolve the crisis and made Fan Xian the chief judge of Si Lili's case. As such, Si Lili had to go through many interrogations in the drama.
Si Lili was interrogated by Fan Xian many times in the show. In the 17th episode of Joy of Life, Fan Xian locked Si Lili in a very small dungeon and threatened her to reveal the truth. However, Si Lili did not have the courage to commit suicide. She began to compromise and tell Fan Xian the truth. Fan Xian used modern interrogation techniques to interrogate Si Lili. He told Si Lili that her life and death were in his hands and threatened to punish her with lifelong house arrest and darkness and loneliness. Fan Xian also threw out a few deadly pills in an attempt to lure Si Lili into taking them. In the end, Fan Xian learned through interrogation that the mastermind behind the assassination was Si Lili's brother, Lin Gong. In order to protect Fan Xian, Si Lili had been tortured twice, but she had always insisted on not telling Fan Xian the truth.
Fan Xian's night trial of Si Lili was in episode 16.
Yes, in the 19th episode of Joy of Life, Si Lili had indeed mentioned Fan Xian's name. In the dungeon, Si Lili said to Fan Xian," Miss Si, it has been more than a month since we parted at the Drunken Immortal Residence. I really didn't expect to meet again under such circumstances." This showed that Si Lili knew Fan Xian's identity and had parted ways with him once.
Yes, in the 19th episode of " Celebrating Years," Si Lili had indeed mentioned Fan Xian's name. In the dungeon, Si Lili said to Fan Xian," Miss Si, it has been more than a month since we parted at the Drunken Immortal Residence. I really didn't expect to meet again under such circumstances." This showed that Si Lili knew Fan Xian's identity and had parted ways with him once.
In the search results provided, there was no explicit mention of whether Si Lili had told the truth. Therefore, I don't know if Si Lili told the truth.
Si Lili had indeed revealed to Fan Xian the truth of the Niulan Street assassination, that the mastermind was Lin Gong. In the plot, in order to protect Fan Xian's safety, Si Lili would rather be tortured than betray him. However, the content of the conversation was not mentioned, so it was impossible to determine what Si Lili had said.
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.
Chen Pingping interrogated Si Lili in the seventeenth episode of Joy of Life.