Chito and Yuuri follow the directions given to them by Iishi to find a supply of potatos. They enter a network of tubes and are directed by a series of arrows to a factory. The two girls find supply of potato powder, salt and sugar. They used those to make rations using the machinery avalible to them in the factory. Yuuri also made rations in Chito, Ishii, Kanazawa, fish and her grandpa face.