C989 Test Thickness
Gu Wen needed to stall for time because the things in the window couldn't be taken out immediately. The glass was made of a different material, and even if Gu Wen had moved far away, she would still need brute force to open it.
This would take time. Gu Wen estimated that it would take at least a few minutes to break it, and she would still need to use her own fist to do so
