[Undercover agent Sheng Qingyan with both ability and political integrity × clever intelligence agent Shen Songxi]
It tells the story of Shen Songxi, a daughter of a wealthy family in Shanghai during the Anti-Japanese War. Her family was deeply colluded with the Japanese army, but she was lurking in the university as a CCP intelligence agent. Sheng Qingyan, an undercover agent of the Chinese Communist Party, approached him because he suspected that he was a Japanese intelligence agent. In the process, he gradually became emotional and restrained due to his family background. In the end, guided by their faith, the two worked together to complete key tasks, and finally stayed together after the victory of the war.
Purpose: Feelings of family and country