In the new human century, people developed mental energy and created a mental power controller to store and control mental energy. The good times did not last long. One day 10 years later, the mental power controller exploded due to too much pressure. The high-purity mental power contaminated humans in nearby cities, causing some humans to lose their minds and mutate into mental monsters. What follows is that if someone has a strong obsession with someone or something after death, it may actually appear and [survive] for a period of time. People call the products of these people's obsessions "phantom rebirths". In order to protect humans from being killed and polluted by spiritual monsters and spiritual energy, governments around the world have set up "spiritual counterattack teams" in various countries to resist the intrusion of spiritual forces and eliminate spiritual monsters and the phantom rebirths that occur after human death.