Song Wan is Wang Jingwei's niece. In order to lurk, she came to the Shanghai Operations Office. She was cautious at every step and frightened at every step. Living in the war years, there are too many things you can't help yourself with, and the scenes in the play are still endless. The heroine once again lives in the age of sparrows. And Song Wan's final choice was Chen Shen? Or Tangshanhai? Or is there someone else? If you never forget it, there will be an echo. The war era of sparrows is waiting for you to lurk together.