C2023 The Secret of Bai Yuqian

Seeing that the elder was still on duty, Lin Yun smiled and asked: "Elder! Why are you still standing guard here? "

"Ha!" Originally, my class was full the day before yesterday, but I didn't see you come out, so I helped someone else to get a few days' worth. "

"Elder Xie!" After Lin Yun bowed and expressed his gratitude, he suddenly thought of something as he asked, "Elder