Maria is abducted to the Dream World, where a giant dragon holds her prisoner. It is up to her sister, Giana, who has become a teenager in the time since the last entry in the series, to enter the Dream World and rescue her. Because she is in a stage of her life that is all about transformation, she has learned how to manipulate her dreams. She must use this newly developed ability to jump between dreams and transform herself into a "Cute" and "Punk" persona in order to deal with her inner conflict and fear while she searches for her sister. As in the past, Giana can pick up crystals for points and discover secrets.