Paris - 1635 For almost ten years now, Mademoiselle Charlotte de Batz-Castelmore lives in Paris and for seven of those years she serves as the valiant Charles Chevalier d'Artagnan in His Majesty's Musketeers. Disguised as a man, she leads a life that would otherwise never be possible for her; free from the constraints of social conventions, self-determined and truly adventurous! No one suspects the disaster that is already looming over Charlotte d'Artagnan and which originates from the very people she trusts the most...