C157 Who exactly are they

He sat down and listened for any sounds coming from outside. There was no knock on the door, so he prepared to go to sleep. Suddenly, there was a series of hurried knocks on the door.

This time, Mo Xiaoyan lowered her footsteps and slowly walked to the front of the store, wanting to stand at the door and see what was going on.

Dong dong dong ?

"Who?" Mo Xiaoyan purposely spoke a little older