Modern historian Li Fan traveled back to the late Northern Song Dynasty in an accident and became an unknown person in Shuibo Liangshan. Facing Liangshan, who was about to be recruited by the imperial court, he knew that behind the recruitment was the inevitable fate of destruction. With his understanding of history and modern military strategies, Li Fan gradually won the trust of the Liangshan leaders. He used new tactics and organizational disciplines to lead the Liangshan heroes to find a way to survive in the ever-changing and chaotic times. In the fierce internal and external conflicts, Li Fan not only had to face the imperial court's encirclement and suppression, but also had to deal with the different voices within Liangshan against Zhao'an. He fought wits and courage with Song Jiang, Wu Yong and others, worked with the Liangshan brothers to reform the military system, improve combat effectiveness, and repeatedly repelled attacks from the imperial court and local forces. However, as the wheel of history rolls forward, Li Fan finds himself step by step involved in greater conspiracies and crises. "Crossing Liangshan" is a historical time-travel novel that combines modern wisdom with the spirit of ancient heroes. Here, brotherhood and ideals collide, and historical inevitability intertwines with personal struggle. Can Li Fan change the fate of Liangshan? A thrilling adventure is about to begin, let us write a completely different legend of Liangshan together.