In a human catastrophe, Landon's (voiced by Sanping Yubuko) father sacrificed himself to save the earth and was called a hero and recorded in history forever. After losing his father, Landon has been dependent on his grandfather, a mechanical engineer. The ordinary life day after day makes Landon feel very depressed. There is only one thing that can arouse his interest, that is, the "skydiving" sport that is very popular among young people. Landon admires the skydiving genius Holland (voiced by Fujiwara Keiji) very much and has always hoped to join his organization "Moonlight Island". One day, a mysterious girl named Eureka (voiced by Nazuka Kaori) drove a faulty LOF from the sky to Landon's home. Later, the army arrived and seemed to be hunting down Eureka. Landon defeated the army with his courage and strength, and thus got the opportunity to join Moonlight Island, and the boy's ordinary fate changed.