Kana tells Rakka not to feed the crows, because they are the only creatures who can leave the city, and if they get too comfortable, they might stop doing so. To explore her own job options, Rakka accompanies Kana to work in a clock tower in the center of town. This, she learns, is the highest point in the city, but the walls around it are higher still.

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.