The legitimate son of a ninth-rank official who just wanted to pretend to be stupid and live in the Tang Dynasty, due to the butterfly effect, caused the complete collapse of history. Forced by the emperor's thirst for talents, he pretended to be mediocre while crazily pretending to be mediocre, while using modern thinking to secretly repair the loopholes in the world, and finally (unintentionally) created a super prosperous age that surpassed the history books.