C28 Another Diagram

The situation became more and more intense. Just when I didn't know how to escape, a gentle man in a suit and glasses suddenly squeezed out from the crowd and looked at me in surprise.

"You are..." The visitor was able to call out my name. I looked at him for a long time, but I couldn't remember who he was. I don't think I know him.

"I'm Han Xiaobing, your high school classmate