Financial analyst Zhou Tianheng unexpectedly transmigrates to the Xuanhe era of the Northern Song and discovers that he has become Bai Sheng, the lowest-ranked member of Liangshan, the “Earth Rat Star.” Using modern knowledge to foresee Liangshan's fate, he resolves to change the ending in which the heroes are granted amnesty and wiped out. He begins by secretly saving Chao Gai and changing his fate, then reorganizes Liangshan under the name “Master of Heaven's Secrets,” builds an intelligence network, and improves military technology. He even seeks a way forward for Liangshan amid the power struggle between Song, Liao, and Jin. As the wheels of history collide with the plans of a transmigrator, where will the 108 heroes' fates lead?