[From the box] What would you think if your best friend went on a date with the King of the Dark World - because she thought he was cute? You'd think she'd been duped - and you'd be right. The fiendish King Rogles stands poised to conquer the other worlds of the universe: the Dream World of Queen Valia, and the human World. Rogles and his five Dark Lords have taken the force of Yang from Queen Valia and sealed it into a Fantasm Jewel. Only a warrior with a heart perfectly balanced between Yin and Yang can weild the Sword of Valis against the encroaching darkness! Yuko a young student from the Human World is the chosen one - and you will control her.