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...
It'll be so much more 
lively from now on!
Jetzt wird alles viel lustiger.
¡Todo será mucho más animado!
¡Todo estará mucho más animado!
Cela va devenir si animé !
A casa vai ficar tão animada!