The moment Chu Han stepped into the research institute, he keenly sensed that something was unusual. Just like Wolf Fang Base, the most heavily guarded place in Nandu Base was also the research institute. He just wondered how far their research had progressed, and whether it was stronger or weaker than Wolf Fang Base's Research Department.
With an inquisitive gaze, Chu Han followed the three men changing shifts with him into the passageway. The three ahead of him maintained their usual silence, yawning nonchalantly as though they did not care about being on duty at all.
Chu Han did his best to keep his face hidden as he followed closely behind them. Beyond the first passageway, entering the research institute required passing through several more doors, each of which needed a fingerprint to open. Nandu Base's research institute was built to a remarkably advanced standard. Research members of different ranks had different access permissions. For example, Chen Zhen, the guard Chu Han had replaced, could only use his fingerprint to open several doors leading into the institute; he had no permission to enter the core area.
If Chu Han had been alone right now, he would not even have been able to pass through the first door. Forcing his way in would immediately trigger the alarm. At that point, not only would investigating be impossible, but even avoiding discovery would be difficult. Having someone ahead of him to open the way was simply good luck.
Before long, the four of them entered the duty room amid an eerie silence. It was a room filled with screens, where cameras displayed the conditions in most of the institute's rooms. The job of the guards was to stay here and report any abnormalities to their superiors immediately.
The instant Chu Han entered the