Nanzao Yunzi was a top female Japanese spy as famous as Kawashima Yoshiko. The deeds of twice plotting to assassinate Chiang Kai-shek, bribing high-ranking officials of the Kuomintang, and stealing military intelligence about the Woosung Fortress all came from this "Empire's Flower." Due to her secretive operations, even half a century has passed, it is still difficult to find a photograph of Nanzao Yunzi.