Princess Yun Jin of the former dynasty disguised herself as a comatose and lewd empress after the country was overthrown, but was actually a Mission Impossible spy lurking in the enemy dynasty. On the surface, she is single and not close to men. She secretly uses her chance and physique to awaken secret arts or obtain magical devices every time she is in danger. When the powerful officials of the enemy country were preparing to usurp the throne, she suddenly revealed her disguise, drove an army of steel tanks to crush the rebels, and regained the country like a taciturn emperor. The core value is revenge and protection, and the fun part lies in the game of strategy and the visual impact of mechanical crushing.