In the first year of Zhenguan (627), a modern historian passed through the eyes of the descendants of the Longyou gentry clan and was shocked to find themselves in the whirlpool of power after the Xuanwumen Incident. When he witnessed the Turkic caravans in the Western Market defrauding Han merchants with "big fights in and small fights out", he used the balance system of "Liu Dian of the Tang Dynasty" as an edge to rewrite the history of Zhenguan. From the reform of weights and measures in the Western Market to the Taiji Palace's advice to the emperor, from the Imperial Academy's accounting education to the improvement of the Yinshan pastures, he cut into the texture of the early Tang Dynasty with institutional designs that transcended the times (equalizing the land, clearing the name in the imperial examination, and private offices in the private warehouse). In the game between the conservative forces of the gentry and the imperial reformists, he gradually injected modern governance wisdom into Zhenguan politics.
