Kuuki no Soko

"Under the Air" is a series of short stories focusing on the greed and despair of people jostling for space on the surface of a little planet called Earth.
The first episode, entitled "Man Who Visits Joe," features a white male racist who has received an organ transplant from a black man without his knowledge and tries to hide it. The last episode, entitled "Couple under the Air," depicts the tragedy of a couple who have grown from babies to adults on life-sustaining machines after all other humans have become extinct. Many episodes of this series are critical of civilization.

(Source: tezukaosamu.net)