In the 21st century, a man from Earth traveled back to Zhu Yuanzhang's uncle 600 years ago during the Ming Dynasty. He also came with a system that contained China's latest technological blueprints and could travel through all dynasties. He told Zhu Yuanzhang about the history of the Ming Dynasty and developed industry, manufactured new weapons, rectified court officials, and made new laws! He wants to change the direction of history!
