Chang Nan, a modern law student, travels back to the Zhou Dynasty and becomes the daughter of a criminal whose home was confiscated and exiled due to the failure of the reform. She is also forced to become the happy son-in-law of Li Che, a scholar from a poor family. At the beginning, he faced a hostile environment: he was intercepted and killed by bandits on his way into exile, and his status was low and he was isolated and helpless. At this time, the "Strongest Legalist System" was activated and issued an impossible mission: help Li Che pass the provincial examination within three months, otherwise the system will wipe him out. Behind this is a chip of fate: Li Che is the orphan of the late leader of the reform sect, and his success or failure is related to the survival of the fire of reform.
