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...
I'm tired of waiting.
Ich bin des Wartens müde.
Estoy cansado de esperar.
Estoy cansado de esperar.
Je commence à être 
fatigué d’attendre.
Cansei de esperar.