The lock dropped!

Qing Yue almost goggled as she couldn't believe that the still tightly locked chain dropped on the ground. She mumbled, "It was... it was not locked, and it was only hanging on the door!"

Who could know that this lock was only put on the chain but never locked the door?

"Good, sharp observation!" A laugh came from the room inside the door.

"Mingqiu Nun!" Qin Wanru stepped back and said with profound respect. ...