When Lu Jinnian's assistant came back with his phone and voice recorder, he realized that the office was empty, and there were two porcelain cups on the table. The milk tea and coffee had already gone cold, so he went to ask the secretary to find out what had happened. When he found out who had come over, realization started to dawn on him. He hurriedly returned to his own office to get Lu Jinnian's clothes before leaving.
The assistant has been following Lu Jinnian for many years, he knew all about his habits that Qiao Anhao wasn't aware of.
Whenever he was upset, he would run, so he drove straight to the gym that Lu Jinnian frequented.
The gym instructor recognized him when he saw him coming and immediately led him to the private room that Lu Jinnian was in.
The instructor might have been able to tell that Lu Jinnian was in a bad state, for he left after leading the assistant to the room.