After reading the information on the holographic screens, Yang Song found that Doctor Leng was really the chief of this place.
More than that, he also had a more precise understanding of all the departments in the Zero Green District Base.
Totally, there were six departments such as the Death Department, Healing Department, Resurrection Department, Emotionless Department, Secret Department, and Protection Department.
So there was only the Protection Department that Yang Song had not visited yet. But he was not worried about it because the Protection Department only had robots and no humans there.
To control those robots, one exactly needed the remote control in Yang Song's hand.
Thinking of this, Yang Song also knew why Zhang Yin did not call those robots out. To call out those robots, or to be more precise, the only person who could call out those robots was Doctor Leng.