In 223 BC, on the muddy field ridges of Nanyang County, Chen Mo looked up from the turbid water and found that he had become "Scholar Wu" Chu Mo, a low-level peasant worker who was relegated to a lowly status because his father was from the Wei Dynasty. The "Crop Genetics and Breeding" in my memory collided fiercely with the wooden fields and well-field system in front of me, while the cold provisions of Qin's laws hung above my head: if one hundred shi of tax was owed, the whole family would be reduced to a subordinate, and the cattle would be "fined with two armors" if they died of exhaustion. His only reliance is the agricultural knowledge accumulated in the laboratory for twenty years, and the half-length bone fragment left by his father with "Essential Art for Elevating the People" written on it.