Chen Yu, 35 years old, is a history researcher at the National Museum, specializing in the history of the late Ming and early Qing dynasties. A modern man who is neither good nor bad in academia and lives an ordinary life. The last scene he remembered was of sorting out a batch of newly collected cultural relics from the Ming Dynasty in the warehouse. When I woke up again, another memory belonged to a complete stranger. A boy named Chen Yu, who was nineteen years old and lived in Yingtianfu, Nanzhili, was a down-and-out scholar who failed to succeed in many exams.