Blackmail?

Madam Wang who was once again in Yun's former bedroom, sat on his bed as she bit her fingernails nervously, while her whole body shook from fear and anxiety. 

Slowly, her eyes returned to the envelope on the bed beside her. Whoever the blackmailer was, they were doing a pretty good job getting her all riled up and uncomfortable, if that was what the person actually wanted before he or she shows up. 

She had made sure to tell the maids at home that whenever a mail came in for her, they should call her immediately and no one was expected to open it.

But her useless maids had forgotten about it. Had it not been for Jinhai who had been speaking with her on the phone then and had told her there was a mail on the table for her, she wouldn't have known about it.

Immediately he told her that, she had ran straight home, scared that he may open it if she didn't get there on time.