In 2157, the earth became a space-time graveyard after experiencing a "quantum tidal" disaster. Transparent humanoid creatures called "time skeletons" wander among the ruins of the city. They are the afterimages of the victims frozen in the rifts of time. When humans discovered that devouring living human consciousness with corpses could delay their own quantization, the last fortress of civilization, the "Dome City", became a slaughterhouse of consciousness. Lu Linyuan, a genius physicist suffering from retrograde memory hyperplasia, was forced to participate in the "Afterimage Harvesting Project" and discovered that there was a countdown light cone hidden in each time corpse. The most dangerous SSS-class time skeleton "Kestrel" was actually his quantum mechanics partner who "died" three years ago - the special sniper Jiang Weixi.
