Battleships Open the Way, You Tell Me This Is the Ming Dynasty?

In the 26th year of Xianning, Ning Jue, an envoy from the Honglu Temple of the Ming Dynasty who was sent to Fusang Fangguan as a dianke, rescued a girl on a cruise ship. After talking, Ning Jue was shocked to find that in the world where this girl lived, Zheng He did not discover the New World, and the Ming Dynasty was overthrown by the slaves in the north, and finally suffered a century of national humiliation. ………… My name is Su Xiaosu. I was originally a freshman in the class of 2010. After an accident, I came to this strange world. In this world, the Ming Dynasty did not perish, but has continued to exist until now, which is 1783 in this world. Although it has also entered industrial society, the Ming Dynasty in this world is completely different from the industrial era I know. There is no distinction between countries in this world, because the world is one family. The people of Yi and Di from all over the world regard the people of Ming Dynasty as the main sect, and the people of Yi and Di as the small sect. America was called "Tandi" by the Ming Dynasty. In Xinxiang Mansion in Tandi, there stands a bronze statue of Zheng He that is nearly 14 feet high. A 10,000-ton battleship is swimming in Osaka Bay, but the Tokugawa shogunate doesn't seem very friendly...? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.