The Special Assistant gradually knew that something was not right when he saw that the professor has been staring at the content for too long.
His gaze fell on the piece of paper in the professor's hand and finally noticed the slight crease he made by gripping the paper too tightly.
"Professor Huang?"
The assistant's voice snapped him out of his trance. Huang Wen Zhou gritted his teeth tightly before he spoke again, "Where is that delivery person?"
"Professor, he left after sending this letter."
"Get that deliveryman to come back!" He shouted.
The assistant was startled when Huang Wen Zhou suddenly raised his voice. Knowing that it was a serious matter, the assistant quickly turned around to chase after the deliveryman.
