Faced with a severe famine and an unjust debt dispute, Lin Heng unexpectedly binds himself to the Shennong System, which specializes in agriculture and medicine. To protect his family and resolve the crisis, he uses the system's advanced planting techniques to cultivate high-yield crops, bringing hope for survival to the entire village. However, this arouses the jealousy of a rival, who secretly mixes poisonous mushrooms into the crops in an attempt to frame Lin Heng illegally in court. Faced with serious accusations, Lin Heng remains perfectly rational. Using the medical knowledge granted by the system, he conducts a rigorous scientific toxicological analysis in court and restores the truth with irrefutable evidence. In the end, the schemer receives just punishment under local law.