The year is 2150, and humanity has entered the Space Age of Exploration. The largest planet in the solar system, Jupiter, in particular is a treasure trove of natural resources. Seeking those resources, humanity has built up numerous biospheres in its vicinity. Those who are born in zero gravity in the Jupiter Zone are known as "Jupiterians". Rico Alberoni is one such person. He lives on Callisto, Jupiter's fourth moon. For him each day was a torment — bullied at school for his peculiar Jupiterian constitution and poked and prodded like a guinea pig at the lab. Until one day he met a man who makes his living recovering wrecked spaceships, a "salvager" named Reiji... This is a story about a boy who couldn't seize today cutting his own path into the unknowable tomorrow. This is an outer space frontier tale for a new generation!