Just after sending off a "guest", Chen Ge's chest was still filled with a cold feeling that wouldn't go away. He slumped on the chair in the clinic and was about to take a breath when the cell phone in his pocket suddenly vibrated.
Not a phone call, not a text message.
It was a pop-up notification from the app called "Yin Yang Book".
The interface is in a weird black and gold tone, and a line of bold blood-red fonts appears at the top of the screen.
