The dynasty opposition (North Feng Nan Ye) in A Sword of Mountains and Rivers is only the background board, and the strange rivers and lakes with swords and shadows are the real story stage.
Du Xuan and Tiantai Sect in rivers and lakes are considered to be virtuous, while the relative "magic doors" are three schools derived from Riyuezong: Xiangsi Gate, Fajing Gate and Huanyue Gate. However, what really disturbs the Wulin is the "northern pastoral" with distinctive nomadic characteristics.
Two hidden lines of the story:
One is Zhu Yangce, a common "secret book" in traditional martial arts novels. In the setting of Sword of Mountains and Rivers, there are five copies of this secret book, four of which are hidden in Beifenggong, Beimu, Xuandushan and Tiantai Sect, and the other one is missing. In this way, for the ambitious Beimu, it has become a top priority to seize the rest of Zhu Yangce.
Secondly, when Qi Fengge defeated Fox Deer Estimate, it forced Fox Deer Estimate to leave a sacred "golden wreath" that could command the northern herders. Xie Kun, the estimated heir of Fox Deer, will not let Du Xuanshan go in order to get back the "Golden Flower Ring".