The events of the story are centered on a Japanese solar power plant based in the planet Mercury called "Saint Elmo". Its name was based on the rare scientific phenomenon called St. Elmo's fire, named after Erasmus of Formiae. This phenomenon occurs in electrical weather at which high points (like masts on ships) will charge and give off a glow.
Japan builds a large space power plant called Saint Elmo in the planet Mercury. The plant supports Earth with its large solar energy supply, but, when there is an abnormality at the plant, Earth has to send several technicians to fix the problem.
The show features two theme songs, "Prometheus Futatabi" and "Tomoshibi wa Eternity", both performed by Yūko Ishikawa. The first was composed by Akihiro Yoshimi, while the second was composed by Yūhei Hanaoka. They were both arranged by Eiji Kawamura and the lyrics were written by Kayoko Fuyumori.
