Getting Rich Is Hard? My Medical Books Connect the Past and Present

[Connecting Past and Present + Famine + Stockpiling Supplies + General + Infrastructure Building + Mutual Devotion] After a medical accident leads to her mother's death, Yu Xin quits her job and returns to her hometown to open a supermarket. There, she unexpectedly discovers that an ancestral medical book can connect to the ancient past. The person on the other side even claims to be Lu Zezhi, a virtuous minister of the Xia Dynasty. He says the Xia Dynasty is in crisis: the people have had no harvests and are short of both food and medicine. Short on water? Here you go! Short on food? Here you go! Short on medicine? She has medicine, and even prescriptions to treat illnesses! To help this virtuous minister, she spends all her savings. In return, Lu Zezhi sends her a room full of gold and silver, making her rich overnight! Yu Xin doubles down, only to fall into the medical book herself and arrive in the Xia Dynasty. Together with Lu Zezhi, she exposes the court's conspiracy and sets things right. Once everything is settled, the heroine returns to the modern world, only for a certain man to complain, “Xinxin, I want you to give me a proper title.”