Travel Through Farming, Don't Panic When Escaping from Famine, I Have a System

Time travel to before the escape, the grandmother and her good-for-nothing son want to be extinct. Sang He doesn't panic, just break off the relationship. Fortunately, I also have a system, and I get back the things that were taken away with the principal and interest. Let's see how she uses the system given by God to build her ancient business empire, become the master of an island, and abduct ancient beautiful men back home.