Time Travel: I Rely on Grocery Stores to Survive the Lean Years

(Farming + CP + system space + warmth + top quality) What? A grocery store owner traveled through time! We were living alone with two children, and there were constant natural disasters like floods, hailstorms, and earthquakes. Fortunately, the grocery store came with us, but unfortunately we couldn't get anything. Heng Chi Heng Chi earned points and exchanged them for supplies to survive the famine years. He picked up a mysterious person on the way to buy and sell, and his identity was unknown.