C1819 Once haughty

Knock. Knock.

At this moment, the door was knocked twice, and Su Changqing came in.

Duan Wengong quickly stood up and greeted him: "Teacher, you're here."

"Hmm, how have you been recently?" This was the first time Su Changqing had come to see him since he had arrived.

Duan Wengong gave a wry smile, "Your life is very regular and there are many things I want to understand