Beginning: the Empress Forces Me to Be Her Husband-In-Law

Traveling back to the Daqian Dynasty, Chen Xiu starts at Caishikou. He will be beheaded if he does not become the emperor's son-in-law. Fortunately, he has a long history as an empress fief, and he also has a rare "hyperamnesia" that allows him to clearly remember countless scientific knowledge, which gives him the ability to climb the technological tree. So, in this feudal society without human rights, he began to farm and engage in industry...