In the year of Wuchang, the Great Wei Dynasty sees a female emperor ascend the throne. However, her reign brings chaos, with monsters emerging and unrest spreading throughout the land. To combat this, the Empress establishes the锦衣天卫 (Jin Yi Tian Wei), tasked with slaying demons and maintaining order. Into this turbulent era, Xu Qingxiao is transported, becoming a county constable. This world possesses '異術' (Yìshù), techniques granting immense power at a terrible cost—death or transformation into a monster. Astonishingly, Xu Qingxiao awakens a 'Wen Gong' (文宮), allowing him to absorb the power of literature and negate the side effects of Yìshù.