In the autumn of 1924, the Shen family, a wealthy silk tycoon in Suzhou, married the Huo family, a wealthy family in the Shanghai Navy. Shen Shutong, who had returned from studying abroad, was forced to marry into Gaoqiang. She runs a girls' school, rescues refugees, and breaks through the feudal prison with her flexibility; he leads the army and walks on thin ice amid the strife of warlords. From respecting each other like ice to cherishing each other in troubled times, the undelivered letters write about the fourteen years of war and chaos and the deep love between the two people that has never been expressed.