Rakka goes to work with Nemu at the library. There she meets Sumika, a kindly pregnant woman who is interested in Rakka's perspective as a newborn. Nemu tells Rakka about an old, unreadable book called The Beginning of the World. Rakka learns about another group of Haibane, both male and female, living in Abandoned Factory on the other side of town.

Rakka refuses to believe Kuu will never return from her Day of Flight, and sickly black spots begin to appear on her own wings. Depressed, she goes to town alone and is approached by Hyouko, a Haibane from Abandoned Factory who asks about Reki. Reki gives Rakka medicine for her wings and tells her about the Sin-Bound Haibane and about her own past.