Sapphire

Hidden beneath the identity of Silverland’s young prince is a courageous girl determined to protect her throne from the villainous Duke Duralumon. While maintaining a refined and level-headed demeanor, she secretly fights injustice as the masked Phantom Knight. Though she must mostly pose as a boy, she eventually adopts a blonde wig to masquerade as a princess. This clever disguise allows her to embrace her true femininity and pursue a budding romance with Prince Frank.