Saturn Apartments Volume 1: 06/28/15
Saturn Apartments Volume 1 by Hisae Iwaoka is about a window washer living with the rest of humanity on a giant ring built around the Earth. The environment was destroyed on Earth but instead of putting everyone on massive ships, à la Wall-E, they now live in orbit above it.
Those who can afford to pay for it, have a window to the outside. The best views are those of the planet. They're also the most dangerous to wash. Mitsu is one of those washers, taking up where his father left off, after he was tragically killed years earlier.
As this is the first in the manga series, there are lots of questions posed. What happened to Earth? What's it like down there now? What really happened to Mitsu's father. What's happening to the ring everyone lives on?