Haibane Renmei Temporada 1 Episódio 10

A flashback shows the kindly Kuramori, who promised to stay with Reki forever. In the present, Reki goes to the Haibane Renmei to ask for help for the ailing Rakka, and is told that Rakka is no longer Sin-Bound. Rakka is given her own job within the wall around the city, and the Haibane from Abandoned Factory offer a tentatively friendly gesture.