C1557 The Factory's Old Man

Every single lamp on his shoulders and head was swaying. It seemed to be full of vitality, but there was a gray aura around the outside of the lights.

This gray aura was the Yin energy, which meant that the Yin energy had already entered their bodies. As a result, it was not a good sign. After a long time, not only would their bodies become weaker, they would also become sickly