Qin Yinze has a weird temper. Although he is in business, he never socializes, let alone goes to a place where people are traded like the black market.
Doctor Tong and others have been with Qin Yinze for many years, and they saw him go to the black market once, and it was that coincidence that saved Ji Rou who was being plotted by others.
Now that I think about it carefully, it was not a whim or a coincidence that Qin Yinze would suddenly take people to the black market at that time. He must have received the news and rushed to rescue the cheap girl who was plotted by Ji Chendong.