Chapter 7:
Kurama, the de-facto ruler of Looking Glass City, tells Koto that their mother is the black rabbit.
Chapter 8:
Kurama has been intellectually curious from a young age, and loved it when his father praised his inventions.  He wants to find what he can do outside of the Looking Glass City.
Chapter 9:
The identities of Doctor Shouko and Fushimi are revealed...
The realms of men are always 
noisy and irritating,
Die Welten der Menschen sind
 immer laut und nervtötend.
Los terrenos del hombre siempre 
son tan ruidosos e irritantes,
El reino humano siempre es 
de lo más ruidoso e irritante,
C’est tout le temps la confusion 
dans le quartier humain,
O reino dos homens é sempre
barulhento e irritante,