Galaxy Express 999 Season 5 Episode 5 A Tale of a Short Life

The next station is a plant called "The Butterfly's Dream." There coexists graceful people with butterfly wings and a discriminated lower class without them. The people with wings live short lives that run out when the season of the cold winds comes. Because of this, they try to live their days having as much fun as possible. But, one girl, Kureha, wants to see more of the world during her short life, so she goes into the forbidden woods. There she meets a poor, wingless boy named Leaf.