Upon witnessing the scenery before him, Cheng Cao, who was just about to step into the corridor, did a double-take and slowly pulled back his foot that was close to stepping out.
The corridor was around twenty meters long. Whether it was the walls on both sides, the ceiling or the flooring, they were all made of glass.
Just the glass itself was not a big deal on its own. What stood out was that right behind the glass was a bunch of squares. These squares were composed of light blue strips of light.
Countless strips of lights had illuminated the corridor brightly.
At the end of the corridor was a metal gate shut tightly.
When Cheng Cao took in the scenery before him, he felt very exposed…
"Don't worry."
Upon noticing Cheng Cao's hesitation, Chen Chen stepped a foot inside and began explaining, "There's an AI recognition system installed. While we were taking the elevator entering the underground section, the AI has already identified us."