C604 Understand the Situation(3)

"Okay," the security guard nodded and said, "Last night, Liu and I were on duty together. He was in charge of guarding the security exit, and I was in charge of the security of the corridor.

" Around two o'clock in the morning, I heard movement at the safe exit. I hurriedly ran over to check on the situation and found a man in black standing there. Before I could see his face