C543 Uncover Sheets

I hastily stepped back as my mind buzzed. Why is he here?

While I was still in a daze, I heard the sound of someone digging for a key outside the door.

Sun Dong Kai knocked on the door but did not open it. He wanted to use his key to open the door, he had Cao Li's key!

I didn't have time to think about it. I started to get out of the way, looked around