Song Dynasty Artificer: From the Start, Everyone in the Village Calls Me Water Nut

There are still twenty-two years until the Jingkang Catastrophe. Everyone in the village calls him the “Water Fool,” the idiot who fell into the water. That is, until he pulls out a book of diagrams no one has ever seen: heated greenhouses for winter vegetables, three-dimensional farming in paddy fields, mulberry-dyke fish ponds, double-entry bookkeeping... He is racing against time: technology must be planted in the soil, the population recorded in registers, and institutions established on paper.