A top agent from the 21st century unexpectedly finds herself transmigrated into the body of the unattractive and frail fifth princess of the Dongyue Kingdom. Betrayed by her unscrupulous fiancé, she crosses paths with the enigmatic and formidable prince regent. What begins as a tale of misfortune quickly transforms into a captivating romance, as the once unlikely pair embark on a journey of sweet and transformative love.