Transmigrate into a courtyard house, and get stronger by doing whatever you please.
You seduce Qin Huairu and turn Jia Dongxu into a eunuch. The System thinks you've done a great job and rewards you with synthetic fiber production technology, which can be used to make bulletproof vests or aerospace materials.
You drive a wedge between Yi Zhonghai and his apprentice Jia Dongxu, and the System rewards you with chicken-farming technology. You usher in a new era of modern farming.
