The protagonist is a 28-year-old office worker who handles operations at a major internet company. After working overtime for three days straight, he is suddenly enveloped in black fog on his way home, plunging his vision into complete darkness. A sharp whistling sound rings in his ears, and his bicycle seems to be tossed into the air by an enormous force. Bing Xuan feels the world spinning. His back slams into something hard, pain surges through him, and his vision goes black. He loses consciousness completely.
