The world’s deadliest assassin of the 21st century unexpectedly finds herself transported into the body of a disgraced empress confined to the Cold Palace. Once abandoned, powerless, and ignored within the imperial court, she now possesses the intelligence, skills, and determination of a legendary operative.

Rather than accepting her miserable fate, she decides to take control of her new life.

Fortunately, she gains access to a mysterious Royal Kitchen System that provides rewards, recipes, and opportunities through special lottery draws. Armed with modern knowledge and extraordinary culinary talent, she begins winning over allies one delicious dish at a time.

Life in the palace, however, is anything but peaceful.

Between political schemes, jealous rivals, and the intrigues of the imperial harem, she must constantly outmaneuver those who wish to see her fail. At the center of it all is the handsome yet cunning emperor, whose motives are often difficult to read, as well as an exceptionally clever child whose presence adds both warmth and unexpected complications to her life.

Using her wit, cooking skills, and determination, the former assassin gradually transforms from a forgotten empress into one of the most influential figures in the palace. What follows is a mix of palace intrigue, comedy, family bonds, and personal growth as she climbs her way toward a brighter future.