Tian Yifan is a time-traveler from the modern social animal/history department. He looks submissive on the outside, but tough and ruthless on the inside. As the third eldest son of the Tian family, he has been at the bottom of the contempt chain for a long time and is good at pretending to be a pig and eating the tiger. Utilize modern agricultural knowledge to improve crops, combine with imperial examination and official career, and carry out rural revitalization in ancient rural areas