Saturn Apartments. Dosei Mansion. Story and art by Hisae Iwaoka. 7 volumes. Completed. Saturn Apartments is a character-driven sci-fi slice of life set in a future where Earth has become a nature preserve. Humanity now lives in a gigantic tube-like structure that forms a ring around the Earth, 35 kilometers up in the sky. With a … Continue reading Saturn Apartments. Dosei Mansion.