Former firefighter Lin Zhao accidentally activated the "Cause and Effect Deducer" on the day of the apocalypse, which can deduce the cause and effect chain of events within 12 hours, avoid risks in advance and optimize choices. He started in the novice catastrophic world "Heavy Rain Siege" and relied on his deduction ability to establish a safe zone in the zombie wave and compete for scarce resources. He gradually discovered that global catastrophes are actually the screening mechanism of the "Trial Field of the Heavens" - each catastrophic world corresponds to survival challenges in different dimensions, and those who pass the level can obtain the source of the dimension to strengthen themselves. As he travels to high-risk worlds such as "Radiated Wasteland", "Insect Swarm Planet" and "Fog City", he not only has to deal with mutated creatures and betrayal of human nature, but also uncovers the conspiracy of the "Manager of the Heavens" to harvest cause and effect from disasters, and finally unites the survivors of each world to reverse cause and effect and reverse the source of the disaster. The whole process is run with a strong and exciting rhythm of "deduction-verification-counter-killing". Every decision made by the protagonist earns excess profits due to his deduction ability. Slapping the villain in the face, plundering resources, and unlocking high-level abilities are all linked together.
