"Top secret content?!" Gu Nianzhi's heart was pounding. She perked up and concentrated even more on the three-dimensional image in front of her.
He Zhichu felt a little uncomfortable at that moment.
He fidgeted twice in his seat and said expressionlessly, "I'm going out for a while."
He stood up in a hurry and walked outside.
He Chengjian glanced at his departing silhouette and knew that he was embarrassed. His heart ached for him.
Gu Nianzhi didn't know what was going on, but she quickly said, "Should we wait for Professor He to come back before continuing?"
He Chengjian smiled and shook his head. "No need. He's a major general in our military. He already knows about this."
Gu Nianzhi did not say anything.
He Chengjian continued on to play the video.
He said in a low voice, "Our people risked their lives to record this. The entire process took two years. This is the most important part of the excerpt."
