Su Xiaoman, a graduate student in the Department of History, communicated across time and space with Lu Zhixing, a rising star in Jiangcheng's business community in 1935, through a mysterious wooden box left behind by his grandmother.
The collision of troubled times and prosperous times, the intertwining of the righteousness of family and country and the love of children, the two secretly developed feelings in the exchange of letters.
When the torrent of history swept over him, Su Xiaoman resolutely traveled through time and space, holding hands with Lu Zhixing in the smoke of the war, and together they made a life-and-death appointment that spanned ninety years.
