Sorao is an ordinary student who lives an ordinary life of a typical kid, but his life is tough due to being the only representative of the school's Science Fiction Club. One Day, he heard that strange ghosts haunt an abandoned construction site and he and his friend Miki decided to investigate. They accidentally makes friends with two aliens who were stranded on Earth after their ship crashed. His life changes as he helps them find their way home, the Moja Planet. As the story progresses, wherein they do reach the aliens' homeworld, Sorao along with Miki, discovers a feud between two different tribes. Things gone awry as the tribes' representatives try to outdo one another in search of the missing treasure of the past with the help of an uncovered clue.