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...
You only look like one, that's all.
Du siehst nur wie einer aus.
Solo lo pareces.
En apariencia, sí.
Tu leur ressembles, 
mais ça s’arrête là.
Você se parece com um, e apenas isso.