10 meters away from the 30 test rooms in the factory, the director group sat at a long table with several computers on it, recording and monitoring what was happening in the 30 test rooms.

"Beep! Beep! Beep!"

Not long before the examination began, a beeping alarm went off.

Hearing the sound, every one of the director group immediately turned their heads and looked at the monitoring screen on the computer.

They noticed a sudden flash of red ...