Yunshuang is the top female assassin "Jackdaw" in the Yan Kingdom. She was ordered to sneak into the enemy's general's mansion to assassinate General Shen Yi, but she was discovered and subdued by the enemy during the operation.
Shen Yi recognized Yun Shuang as the mysterious woman who saved him five years ago. Not only did he not kill her, but he kept her in the mansion, acting as a maid but actually monitoring her.
Yun Shuang discovered that Shen Yi's mansion contained a jade pendant related to her life experience, and at the same time received a new order from the organization - to investigate Shen Yi's secret dealings with important officials in the court. After getting along day and night, Yun Shuang was moved by Shen Yi's military ability and love for the people, and she was shaken by her mission, while Shen Yi gradually became affectionate for this special "maid".
Yunshuang's true identity was discovered by Deputy General Shen Yi, and she was faced with a life-or-death decision. At the same time, the organization issued an ultimatum, forcing her to choose between loyalty and love...
