Erika, the princess of the Magic Kingdom, ventures to Earth to locate a human girl who bears a striking resemblance to her. This unsuspecting girl happens to be Himeko Nonohara, a spirited and boyish individual. In a bid to prove Himeko's eligibility as her successor, Erika entrusts her with a magical artifact she crafted. This artifact, a transformative hair ribbon, grants Himeko the ability to mimic anyone she lays eyes on. The narrative unfolds as Himeko navigates through newfound abilities and her developing affection for Daichi, the young man who stumbles upon her clandestine identity.