It was easy to reach the staircase, but Luo Yirui didn't know if they had been monitored just now. If they had, people would likely come soon.
There were few people in the outer building. Luo Yirui and his group climbed the stairs to the fourth floor without seeing anyone. However, they remained alert throughout.
Since they used the staircase consistently, apart from initially being exposed to a camera, they hadn't been exposed further. They went up to the fourth floor and came back down without seeing a single person!
This was very strange. The outer building had some defense functions; it was unlikely there would be no one here.
"Let's split into two groups. Zu Yan takes two people, and one will come with me. We'll split up and search. Don't overlook any clue," Luo Yirui said.
They were preparing to search various rooms to find the security chief's office directly.
