In 2025, Hu Zhengyu, a graduate student in the Department of History, fell into a coma in a car accident, and his consciousness traveled back to Zhou Mingyuan, a student at Peking University in 1919. Modern thinking collided with the environment of the Republic of China, and many interesting things happened. In the midst of the May Fourth Movement, he met 19-year-old Lin Wanqing, the legendary scientist known as "Grandma" in reality. Two people of the same age and different generations fell in love with each other without knowing the truth, and fell into a double dilemma of ethics and history.
Hu Zhengyu participated in the May Fourth Movement, the Northern Expedition and the Anti-Japanese War as a witness, guarding this love that spanned time and space, but was unable to change history. After his death on the battlefield in 1941, he returned to modern times, only three days have passed. Faced with the record in the family tree that "Wanqing never married," he used files and diaries to uncover the truth about her secret marriage to her great-grandfather.
The novel interweaves serious history with light comedy. It not only describes the vivid adventures of modern souls in the Republic of China, but also unfolds the choices and sacrifices of individuals in the era. This is a love between time and space that is known but powerless, and in love but forbidden. It explores how memory transcends blood ties and choices define destiny.
