In Shanghai in the 17th year of the Republic of China, Shen Ruoyao, a daughter of a prominent family, refused to marry into a wealthy family and used a scalpel to save lives and injuries; passionate reporter Lin Yufeng rushed to Shanghai with a pen, vowing to expose the darkness of society. An unexpected encounter on the street leads to a secret love between the two, but they are thwarted by the warlord's son Xu Zekai - he suppresses Lin Yufeng out of jealousy and threatens Shen Ruoyao. The two work together to fight tenaciously, using the pen as the blade and the doctor as the shield.
The current situation is turbulent, Lin Yufeng accidentally discovers the Japanese army's plot to bomb the station, and Shen Ruoyao uses her identity as a doctor to cover the transmission of intelligence. They were hunted down by Rite and Xu Zekai, and supported each other from the warehouse to the church on the verge of life and death. In the end, the two teamed up with patriots to expose the conspiracy and ignited the enthusiasm of the people to resist Japan. Xu Zekai was convicted of collaborating with the enemy.
After going through many hardships, Shen Ruoyao and Lin Yu got married in the snow, using bullet shells as their wedding rings. Since then, they have guarded the clinic and fought against each other, continuing to write a legend of mutual care and hope in troubled times.
