Johji Manabe in the Magical girlfriend genre. It tells the story of alien Princess Kahm and Tokyo News Photographer Wakatsuki Tetsuya as they try to save the earth from Kahm' father. Kahm's people, the Santovasku, use giant organic spaceships similar to the ohmu.

Outlanders is a long-running series of science-fiction novels published by Gold Eagle, an imprint of Harlequin Enterprises.

Immortals who never enter the Habitat because their vast halo causes loud ripples.