A German girl dressed in Hanfu live broadcast in Shanxi. In an ancient building, she told the live broadcast audience that this was her great-grandmother's house, which was specially built. The audience wanted to hear about her great-grandmother's love. Time and space shift to the end of the Qing Dynasty. After the Qing Dynasty lost the Opium War in 1840, people of insight were looking for ways to strengthen the country. A family in Shanxi chose a promising young man to go abroad with the Qing diplomats to learn about the world. During their contacts and accompanying Qing officials, they learned about the situation abroad and wanted to arm the country. The Franco-Prussian War that had just ended in Europe gave birth to a new powerful country, Germany, and went to Germany with the diplomatic mission to seek cooperation. The male protagonist went to Kiel to learn about the German Navy, and met a German engineer girl. They cooperated with Germany and were sent to the Qing Dynasty. With the contact, the boy dreamed of getting rid of the country's backwardness, and the girl dreamed of obtaining more resources to display her ambitions. Finally came together.
