In an era of chaos, the country faced internal and external troubles, and the secret service became an important supporting force for the country.
Xu Shanqing is a talented dancer with a beautiful appearance, but she hides an unknown identity - a member of the national secret service. She uses the dance hall as a cover to perform various secret missions.
Chu Yiling is a gentle and elegant teacher who is deeply loved by his students. For some reason, he joined the national secret service and became Xu Shanqing's colleague.
The themes of the story may involve loyalty, sacrifice, love and betrayal. The tone is sad and troubled, reflecting the characters' inner struggles and the turmoil of the external environment.
