rich

After being expelled from her elite private school, spoiled, arrogant rich girl Astrid is forced to attend her local private school. Intelligent and proud of it, Astrid believes she will have the school in the palm of her hand but soon learns important lesson about herself and her place in the world as she discovers the reality of the public school system.

While the people of Earth live in a stratified society on a ring surrounding the planet, Mitsu's father has disappeared and Mitsu is forced to undertake his father's profession as a window washer shortly after his junior high school graduation, which allows him a view of the higher levels of society through their windows.