Era: Rush to Fish for Sonar at the Beginning

Reborn back into the poverty era, Zhou Chang counterattacked with a mysterious bronze coin. In order to protect his family and pay off debts, he borrowed bronze coins to help him find money and get out of trouble. He even accidentally obtained a Japanese sonar, and was hunted down by village bullies and spies. With wisdom and courage, he escaped from death, surrendered to the country, won awards, and started a passionate new life.