Qin Ye, a modern deduction master, traveled through the Qin Dynasty and owned an unfettered all-round deduction system. He hid in the small town of Julu and opened a tavern to spend his days. Once upon a time, he met the First Emperor Ying Zheng who was traveling incognito, and he revealed the shocking secret that the First Emperor's elixir was extremely poisonous and his life span was less than a year! The spicy hotpot amazes the emperor and his ministers, and the Quyuan plow subverts the farming pattern. The gentle and loyal maid Chunxiang accompanies him day and night, sleeping in the market and polishing his cards. Qin Ye vowed to assist Ying Zheng, supplement his life with food, innovate the mulberry fields, predict the situation of the war, eliminate traitors, and rewrite the fate of the second generation of the Qin Dynasty. From a small shopkeeper in the market, he gradually climbed to the top of the powerful officials of the Qin Dynasty!