Chu Yuan is the person Qin Yue arranged for Qin Yinze. He still understands Qin Yue's character to some extent. Qin Yue can't explain clearly, but he still knows what Qin Yue is referring to: "Sir, it's strange to say After the clue to kill Doctor Tong was broken at the airport, no progress has been found so far."

Qin Yue: "You have evidence that the two murderers entered the airport, but you don't know where they went after they arrived at the airport?"

Chu Yuan nodded: "Yes."