Returned to the Southern Song Dynasty and Became the Supreme Emperor

In 1259, there were only 20 years left before the demise of the Southern Song Dynasty. This was a cowardly era that no traveler wanted to come to. Chen Zheng accidentally traveled across time and space and came to Diaoyu City. He made firearms and killed Brother Meng. He discovered a conspiracy that had not even been recorded in history. He learned that the successive deaths of Lizong's heirs in the Song Dynasty were not God's will but a man-made disaster. His newborn son became the only bloodline of the royal family, and he himself became the Supreme Emperor with real power. He attacked Mongolia, broke the conspiracy, turned the tide, and step by step brought the precarious Song Dynasty back on track, rebuilding the glory that surpassed the Han and Tang Dynasties!