Chen Mo, a modern college student studying meteorology, is electrocuted by accident while staying up late organizing meteorological records from the Three Kingdoms period. His soul transmigrates to a village in Nanyang at the end of the Eastern Han dynasty. With no illustrious family background or supernatural golden finger, he has only his solid knowledge of meteorology and skills in observing seasonal patterns to help him stumble through this war-torn age.
Trapped in a ruined temple from the start, he predicts a torrential downpour by reading the clouds and humidity, saving refugees such as the hunter Li Erzhu, but soon gets into trouble because he doesn't understand local seasonal patterns. He gathers the survivors and settles in a mountain hollow, using a fragment of the Nanyang Rainfall Register alongside modern knowledge to predict droughts and locate water, then turn the tables on local tyrants with the help of heavy rain. Step by step, he builds a haven amid the chaos. Forced into the conflicts in Jingzhou, his precise short-term weather forecasts help Liu Qi repel the forces of Jiangdong. He is appointed as a meteorological aide, and even debates the weather with the reclusive Zhuge Liang, gaining a slight edge with his modern system for classifying seasonal patterns.
From a timid, cowardly college student to a revered meteorological scholar in a world at war, Chen Mo lives without grand political schemes or peerless martial prowess. All he has are volumes of observation records, a collection of simple tools, and the original resolve to use knowledge to help the people. As Shu Han nears its end, he retires to Nanyang with his companions, leaving behind A Summary of Three Kingdoms Meteorology. His methods of observing wind and rain become a spark of hope, helping ordinary people survive and thrive amid the chaos.
