At the end of the 20th century, global climate changes have begun to occur. A mysterious organization of persons with superhuman abilities, the Overworld, was formed on an island in the Pacific Ocean. When Sigrid Aoyama sees her friend Yuri being taken away by members of Overworld, she enlists the help of Wilma to chase after the captors. The first full serialization made by Kobayashi Ritz of Saki fame.