For her sister's happiness and happy ending, Charlotte decides to bring home the knight who holds her sister's heart. However, that means getting to the Black Dragon Order, where the mysterious Archduke Ludovika lurks. With rumors of the archduke's penchant for men, Charlotte dons a wig and becomes Charcharl, a new squire of the order! Despite trying to lay low, she keeps drawing the archduke's eye and suspicions. Can Charcharl keep up the act till the end, or will her cover get blown?