After a war two millennia past, the lunar inhabitants yearn to journey back to Earth. Feeling out of sync in the moon's artificial society, Loran opts to be a 'volunteer' for the Earth reentry project. His aspiration? To rest upon Earth and perhaps encounter the Moon Queen. Intertwined with Loran's tale are the narratives of six individuals, such as Sochie, Keith, and Kihel-Diana, unfolding before the events of the television anime series.