The spoiled son of INTO chairman, Colin Clifford visits the ISPV 7 space station, and goes on a debris hauling mission with the Debris Section. Among the debris retrieved is Colin's camera carelessly left attached to a derelict satellite.

While recovering from an injury, Hachimaki must stay on the Moon to recover. He then meets a girl who is a Lunarian, a person born on the Moon. Hachimaki also meets Harry Roland, a veteran astronaut who is in an adjacent hospital bed.

An engineer from an impoverished country, El Tanika, comes to the ISPV 7 space station to have his new spacesuit tested. No one will have anything to do with his unusual suit because of the lowly status of his home country unil the Debris Section volunteers to help him with the testing.

Hachimaki is left adrift in space in the middle of a solar flare and miraculously survies. But he is diagnosed with Acute Spatial Disorder and unless he can overcome it, he will be grounded from space for the rest of his life.

Debris Section has been assigned to the Moon for a month to help collect debris from the Tandem Mirror Drive disaster. In training as a finalist aboard the Von Braun, Hachimaki learns that one of his fellow candidates is planning to sabotage the mission.

With Tanabe fully recovered, she and Hachimaki visit the ISPV 7 Space Station.