In Records of the Three Kingdoms: Book of Shu (Sanguo Zhi: Shu Shu), the writing style of taking the biographies of Liu Yan and Liu Zhang, the two governors of Yizhou, as the beginning instead of the biography of Liu Bei, the founding monarch of Shu-Han, is quite inconsistent with the general rules of historical books. The reason why Chen Shou adopted this writing style was to downplay the identity of the Shu people entering the Jin Dynasty as former dynasty survivors and to strengthen their identity as local scholars. This kind of writing was not only a cooperation with the legitimate narrative of the Cao-Wei regime''s "replacing the Han Dynasty" (Dai Han), but also an active choice based on the Jin Dynasty''s policy of governing Shu and the political ecology of the Shu people at that time, which reflects the historical process of the Shu people entering the Jin Dynasty struggling to integrate into the regime of the unified dynasty.