C669 Program

Just as Ouyang Qing'an was about to open the door, a figure suddenly rushed in from outside.

"I've finally found you..." The professor was extremely tired. He was old, and he only felt his eyes blur when doing these intense activities. His blood pressure rose a little and he almost fell.

Ouyang Qing'an reacted quickly and supported his shaky body. He asked worriedly, "Teacher