Traveling through the late Song Dynasty, Lu Chen discovered that his walkie-talkie was a "military satellite" in this era! Commanding ambushes and delivering intelligence can be called a dimensionality reduction strike. The emperor regarded him as the pillar of the country, the famous general Yue Yungan as his younger brother, and his confidante helped him with all his strength. He made firearms, improved military industry, and built an invincible iron army all by himself! In the court, he battled wits and courage with the treacherous Prime Minister Cai Jing; on the battlefield, he defeated Jin Wushu to a rout! How can a walkie-talkie stir up the world? Let me subvert this weak Song Dynasty!