Haibane Renmei is a tV series anime that premiered in fall 2002, produced by Radix.

About the production: the story comes from a other, there are 13 episodes of about 24 minutes and its current status is "finished".

Its main genres are drama, fantasy, mystery, psychological and slice of life, with themes such as Angels, Rehabilitation, Philosophy and Found Family.

On AniList, Haibane Renmei has an average score of 80%, a very good score, and appears on 102,670 users' lists.

A dream of falling from the sky... and then birth. Rakka is born from a large cocoon into the Old Home, greeted by a group of girls with small wings on their backs and shining halos above their heads. Soon Rakka’s own wings grow, a halo is placed on her head and she is told that she must work in the nearby town of Grie. She soon realizes that the town and the entire world they live in are confined behind the Wall, a tall, impenetrable wall that none except the mysterious Toga are allowed to exit. (Source: Anime News Network)

Official synopsis from AniList.