Upon uncovering a mystical crown, Himeko's ordinary life underwent a dramatic transformation as she became a princess, trading in her high school student status. This newfound power didn't come without its problems, however, as Nana, the original princess, was now determined to reclaim what was hers. As if that wasn't enough, things were further complicated by the arrival of Leslie and Caren, two rogue thieves seeking to acquire the crown for themselves. What was once a simple and peaceful existence for Himeko was now fraught with chaos and turmoil.