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 can't spend the nights 
at some woman's place—
weil du jetzt nicht bei irgendwelchen Frauen übernachten kannst—
que tu t’es attaqué à Koto
au lieu d’aller voir tes petites amies ?
porque não conseguiu uma mulher para a noite-