In 1661, on the eve of the fall of the Southern Ming Dynasty, Su Yuan, a doctoral student in the history department, was transformed into the fifteen-year-old crown prince Zhu Cixuan, the son of Emperor Yongli. He foresaw the impending disaster of the cursed water, but was imprisoned for his slight words and watched history repeat itself. From the Ava prison cell to the breakout of Salim Port, he led the remaining troops to seize ships and go to sea. He started farming from scratch in Myanmar's Mergui Archipelago, built up science and technology, built a navy, and used sea power to fight land power. Marrying a Burmese princess, joining forces with Navy Zheng, and recruiting troops from the Three Feudatories, he counterattacked Yunnan step by step, conquered the Central Plains, and finally overthrew the Qing Dynasty. When the dragon flag once again flew over the city of Nanjing, a blue empire spanning the Pacific and Indian Oceans had quietly emerged. This is not only an epic counterattack by a subjugated prince, but also a magnificent transformation of a civilization from the loess land to the sea.