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...
so I suppose it doesn't 
matter too much, does it?
also wird es wohl nicht so wichtig sein, oder?
así que supongo que no importa mucho, ¿no?
así que dará lo mismo, ¿no?
Tu peux faire ce que tu veux.
então acho que não faz muita diferença, faz?