1x9 - Haibane Renmei

Rakka realizes that the crow that died in the well represents someone who cared about her in her old life. The Toga find and rescue her from the well. Hearing a noise, she touches the wall. The Communicator leads her home and they talk about the bird, her wings, and a riddle he calls the Circle of Sin. Arriving home, Rakka becomes ill from having touched the wall.