Lin Yu, 30 years old, has a doctorate in engineering. He not only has solid knowledge of machinery, agriculture and chemistry, but is also a fanatic obsessed with history, especially the history of the Ming Dynasty. When Lin Yu visited the Ming Dynasty History Museum, a rare and strong earthquake suddenly struck. In the chaos, a mysterious light drew him into the vortex of time and space. When he woke up again, he was already in the seventeenth year of Chongzhen (1644) at the end of the Ming Dynasty.
