The narrative takes place in the 22nd century, an era where space travel, planetary colonization, and anti-gravity basketball are practically everyday occurrences. Since Planet Earth has become uninhabitable, humanity resides in colonies on surrounding planets. During a school field trip, an error causes the protagonist—a young transfer student named Luna—along with her pet robot and six classmates, to be swept through a gravity storm and crash-land on a planet that appears uninhabited. There, under Luna’s leadership, the group must fight for survival. The team includes the robot cat Chako, the lone wolf Kaoru, the spoiled rich boy Howard, the shy Sharla, the obedient Bell, the prideful musician Menori, and the young genius Shingo. But is the planet truly uninhabited, or is there someone or something out there, waiting in the shadows?