Chu and Han traveled through the Qin Dynasty, growing potatoes and dreaming of a business empire. They drank with Ying Zheng and called themselves brothers, but suddenly they wanted to marry Princess Yinman. Ying Zheng angrily denounced "dreaming", but he thought one was too little and wanted seven or eight! Fusu became enlightened by farming under his disciples, and the potatoes were about to mature. In this life, this modern soul wants to use potatoes to change the agriculture of the Qin Dynasty, and at the same time turn the emperor of the ages into his father-in-law. In this era when hundreds of schools of thought are emerging, he will embark on the most outrageous path!