Haibane Renmei - New Feathers (Vol. 1)
The Haibane, who look like angels with halos and small wings, share a walled  town with humans. Both groups are forbidden to leave. Rakka awakens from a  portentious dream when she emerges from a huge cocoon as Haibane. She was  apparently human once, but can only remember fragments of that existence. She quickly  settles into Old Home, a former dormitory where the Haibane live when they're  not working. With the help of some fellow Haibane, Rakka learns about the  enclosed world in a succession of brief vignettes. Unfortunately, life at Old  Home is about as exciting as a visit to Ozzie and Harriet. These mini-episodes  are cute, wistful, and dull, with passive, uninteresting characters. Rekka's  curiosity about what lies beyond the walls will undoubtedly lead her to violate  the Haibane's most sacred law in a later episode. (Rated 13 and older: brief  nudity, minor profanity, tobacco use)--Charles Solomon