70, I Have an Exchange System

(Please help give a rating, thank you.) In 2025, Special Forces Major Guo Fan died heroically to save his comrades on the border. When he opened his eyes again, he actually traveled to 1967—— A 14-year-old boy whose parents have died and lives a hard life with his poor grandfather who only knows fortune-telling. The family is surrounded by walls, and they are hungry for nine meals in three days. The whole village was waiting to see how this "broom star" would die, and his aunt was even more eager for him to vacate the shabby house as soon as possible. Guo Fan was about to smile bitterly, but found that the jade pendant he was carrying was following him—— I have the space and the exchange system! While others are nibbling tree bark, he fishes and catches shrimps; while others are hungry and bloated, he eats enough seafood. Starting from a small fishing village, Guo Fan exchanged space for modern materials and quietly rewrote his destiny. After his grandfather passed away, he was taken to Harbin City in the north by the troops who sacrificed his father, and worked as a buyer in a state-owned pharmaceutical factory. When the villagers in the past were still worrying about a ration of food, Guo Fan had already made a name for himself in Harbin. "Who said there is no way out in this era? I want to do the biggest business from the poorest place!"