C1137 Surprise

They were so engrossed that they didn't even hear the knocking sound. Although the sound of the door was quite good, the noise they made could still be heard by the people outside.

Just like that, the moment they heard the sounds of fighting outside, they opened the door worriedly.

Chen Yan and Liang Xiao looked up at the same time.

Liu Wen, who was standing at the door