Lu Xuerong placed the items she always carried into her backpack, then left a note for Feng Zhekai.
Afterward, they knocked on the door across the hall, informing Yang Jia and Chen Fengzhou about the situation.
Yang Jia and Chen Fengzhou assured them they would definitely keep an eye on Dr. Feng and told them not to worry.
With their promise, Lu Xuerong felt relieved and followed Gu Pan down the stairs.
Next, they went to the place for issuing identification, where Cheng Yang and Lu Xuerong got temporary access permits—valid for five days and good for a single use, meaning they could leave only once and had to return within those five days.
If the permits expired, they would have to go through the whole procedure again upon their return.
Anyway, Gu Pan and the others were aware of the time constraint and wouldn't exceed five days.
