On the fifth day of intensive training, the trainees gathered in front of the laboratory building after breakfast.
It had been dark the previous night, so no one had paid much attention. But now, in the early morning light, they saw that the main door of the laboratory building was a thick, black steel door, seemingly even thicker than the walls. All the windows were made of integrated explosion-proof glass, and ventilation depended entirely on the ventilation system. Even without curtains, no one from the outside could see in.
"Could this be the so-called one-way glass frequently featured in those romantic action movies?" Yuan Dang said seriously, his words completely at odds with his dignified appearance.
