Traveling Between Two Worlds, from Raising a Family to Raising a Country

Traveling through ancient times for several years, I originally planned to get married and repay the favor of adoption, but the golden finger of the system arrived belatedly, opening up trade between the two worlds. So what about a peasant girl from a mountain village? She exchanged delicacies and wild game for modern items and lived a turbulent life. In the end, she became a national master of a country.