In the first year of the Ming Dynasty in the Northern Song Dynasty, the family of Lu Yihao, a fisherman in Dengzhou, was destroyed by Japanese pirates. Fortunately, he was saved by Mr. Liu, the guardian of the "Jinglu Sword Classic". He coincided with the Qingli New Deal and Wang Anshi's political reform. He used force to protect the New Deal and fought against Xixia with swords. However, because he insisted on "people's livelihood first", he was squeezed out by the old and new party struggles. In his later years, he lived in seclusion in Laoshan to teach his art, just to keep the fire of "protecting the land and protecting the people".
During the Shaoxing period of the Southern Song Dynasty, young Shen Mingzhang inherited Lu Yihao's mantle and went down the mountain with the "Jinglu Sword Classic". He protected the refugees as they crossed south, helped the Yue family's army fight against the Jin Dynasty, and formed the "Jinglu Alliance" to unite the heroes of the Jianghu. Even though the Longxing Northern Expedition failed and the Song and Jin Dynasties were in conflict for a long time, he still followed the motto of "clear right from wrong and show loyalty" and opened a martial arts school to cultivate young men who would serve the country. When the Mongols were approaching, even though he was old, he still looked forward to the danger of "preventing the Mongols", laying the groundwork for the Southern Song Dynasty to resist the Yuan Dynasty.
