Escape with a Trading System

Gu Ruan traveled through time and found that he was on the run from home at the beginning, and he also had an infant brother with him. What should he do? Without saying a word, he prepared to escape, but when he turned over his house, he found 50 copper coins and 3 sweet potatoes. What could he do with this? Fortunately, a trading system came to bind it. Others eat dirt, Gu Ruan eats meat. While others were chewing tree bark, Gu Ruan was drinking soup along with the male and female protagonists of the original text. Suddenly discovering that he can make money by rescuing people, Gu Ruan also wants to start becoming a "Holy Mother"... As a result, the money is getting more and more...