Shen Yan was a scholar from a poor family in the south of the Yangtze River during the Tianqi period of the Dajing Dynasty. He was forced to drop out of school due to his family's financial difficulties and awakened his system in a desperate situation. This system is not an alien technology, but a concrete embodiment of the "technique of deduction" that operates based on the rules of heaven and earth. It needs to be fueled by "sincerity," "knowledge," and "merits." It can deduce the cause and effect of things, analyze the trajectory of people's hearts, and predict the direction of events. However, it cannot directly confer extraordinary power, and the results of the deduction are affected by the completeness of the information and variables. The protagonist needs to verify the decision by himself.
