"National Treasure" tells the story of Jiang Yiqiu, who was awarded the title of "Sword God" at the age of fifteen and became a "literary saint" at the age of twenty. He fell from the altar because he was involved in the competition for the "Sixth Patriarch Altar Sutra" handwritten by Hui Zhong, the most precious Buddhist treasure. After fighting against 199 masters, he was seriously injured and lost his memory. He fell into prostitution and became the male prostitute "Aqiu" in the private court of a noblewoman in the south of the Yangtze River. The Ninth Princess in the Deep Palace is secretly investigating, the Japanese swordsman is provoking across the sea, and the undercurrent of the martial arts in the Central Plains is surging. When he regained his memory in humiliation, he realized that the scriptures were related to the destiny of the country. From brothels to rivers and lakes, from the south of the Yangtze River to Japan, Jiang Yiqiu's journey back to the top as a swordsman, a literary saint, and a cripple is also a process of dealing with many forces to protect the real "national treasure" in the world of disasters - not only the sacred scripture of Zen Buddhism, but also the integrity of mountains and rivers. This is a martial arts legend that interweaves civil and martial arts, full of classical aesthetics and human struggle (this story is a literary construct, and any similarities are purely coincidental).