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...
but the only thing driving 
my boss is simple curiosity.
Aber das Einzige, was meinen Chef umtreibt,
 ist ihr Wissensdurst.
pero la única cosa que motiva 
a mi jefa es la curiosidad.
Lo único que motiva a mi jefa es la curiosidad.
C’est la curiosité qui l’anime.
mas o que motiva minha chefe é pura curiosidade.