When the ruler of the land suddenly decides to abandon his throne, chaos is certain to follow! In a mysterious world, King Dark Fleet announces that Yoshida-kun - a human named Yoshida Kaoru - shall be his heir. The unassuming Kaoru knows nothing of the responsibility that awaits him, and when faced with such a life-changing decision, he chooses to continue leading his normal, albeit strange, life. Kaoru is certainly a special fellow, as his knowledge of magic and special powers increase. With his trusty sidekick, Ageha, always by his side, nothing seems to change... until his identity becomes known! Those who are convinced that this Yoshida Kaoru is the one King Dark Fleet has appointed make it their decision to usurp this outsider. When Kaoru finds that he must face the elements against him from this world of mystery, he has no choice but to accept his charge and discover a world he never thought possible, fighting evil around every corner in order to fulfill his destiny.