The protagonist Chen Bei accidentally discovered that the WeChat icon on his mobile phone had changed. At first he thought it was just an ordinary system upgrade. It was not until he went home at night and lay on the bed while scrolling through his circle of friends that he realized that he could not see the familiar avatars from the past. He opened the address book and found that there were so many friends that he couldn't even find them. Moreover, everyone in WeChat had their real name written after their name. Each name made his right hand holding the phone tremble slightly, Jack Ma, Tony Ma, Principal Wang...
There are huge business opportunities hidden in their circle of friends...
