The witness was the men who Chi Yuan hired to rape and kill Jia Huan Bao back then. There were three of them. Min Liang managed to trace them and made a deal with them.
If they agreed to make a testimony against Chi Yuan, then Min Liang would not make things difficult for them and their families. Yue Cooperation would help them get a lesser punishment for their crime.
All of them were younger back then. Because of the small amount of money, they were willing to commit the crime. But now, they all already had their family, wife and children to support. Because of that, they agreed to go against Chi Yuan.
When the three of them had been entering the court, Chi Yuan glared at them like she wanted to kill them. They already agreed with her that they would keep the secret to their death. But now what?
