The Planet Expel is a lush green world with abundant natural beauty. However, three months ago, after a meteorite crashed to the surface, monsters began to appear and word of strange happenings spread across the land. The people began to regard the meteorite as an omen of disaster and dubbed it "The Sorcery Globe." At this time, a young girl from the village Arlia, named Rena, decides to visit the Shingo Forest, which is some distance from her home. Although her mother tries to stop her- warning of the appearance of monsters and other strange happenings since the arrival of the Sorcery Globe- Rena insists on going into the forest alone. .