Princess Charlotte, the third royal daughter of the Forsyth Kingdom, had long been treated coldly as a counterfeit princess. One day, she takes a curse upon herself to protect her sister during a mysterious man’s disruption of a royal ball. Under the guise of “recovery,” she is confined to a remote northern palace… only to find herself transformed into a little girl by the curse!? Determined to start fresh, Charlotte devotes herself to researching magical plants. But then, one day, she receives a letter: “W-w-what!? I have a fiancé!?” She meets Duke Leon, the head of a prestigious family, and—flustered by her childlike form—blurts out a lie, claiming she is “Shirley the maid.” Thus begins the tale of their entwined fates: a cursed princess and a stunningly handsome duke in a heart-pounding romantic fantasy!