Chang Jianyu confirmed that he had successfully implanted the virus into Xue Tangchun's phone, and that was why they had managed to listen in on the conversation between Qin Zemin and Xue Tangchun.
Wen Xiang, Xue Tian, and Chang Jianyu deliberately didn't go to sleep right after they finished discussing their next plans. The three of them agreed to stay awake in case Qin Zemin decided to call Xue Tangchun in the middle of the night, and it seemed their hunch was pretty accurate since Qin Zemin did call Xue Tian's uncle even though it was past midnight.
Three pairs of ears listened to the conversation between the two old men, and neither made a comment as they focused their attention on the conversation.
