In the Dayin Dynasty, Lu Jingheng, a scholar from a poor family, woke up with a "wance deduction board" in his mind, which could not only dismantle the situation and predict people's hearts, but also turn modern knowledge into ancient hard currency. While others spent ten years in poverty trying to gain fame, he first relied on hot pot, accounting, public opinion warfare and commercial layout to turn a small county into a turmoil. On the surface, he is a poor scholar, but in fact he is the most ruthless character who knows how to settle accounts, set up traps, and deceive others. Facing Gu Mingxiu, his love rival from an aristocratic family who was always targeting him, Lu Jingheng dug a hole with a smile while backhanding the opponent into the chess game he had set. As for Su Qingtang, who everyone thinks is unattainable, he is cold and decisive outside, but in front of him, he can always be amused by a word that makes the tips of his ears turn red. Others rely on being arrogant to be jealous, but he prefers to use his brains; others rely on spending money to spoil others, but he can spoil his favor to the core. The imperial examination has not yet started, but the storm has begun. In this game, he not only wants to win, but also wins beautifully.