...
"Year X023.3.4. As expected, they couldn't sit still. Five people who appeared to be well-trained were inserted, but I don't know if they were sent by the officials or another faction. Three of them stayed in the classroom, while two returned to the dormitory..."
"Waiting for nightfall."
...
"Year X023.3.5. They indeed took action targeting the "Angel." In the end, they all perished. I take back my words about them being well-trained—what a bunch of idiots, so reckless... Can this even be called well-trained?"
"Perhaps, from their perspective, they couldn't distinguish between the "Angel" and the "Angel Sculpture"?"
...
"Year X023.3.5. After signing in, updating the investigation progress, and returning to the dormitory, one of the two died. Their capabilities are far too inferior; they can't possibly be official personnel. My worst fears have come true... the officials might have been infiltrated."