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's not fair that you get her all the time!
Das ist nicht fair, dass du sie die ganze Zeit hast.
¡No es justo que te la 
quedes todo el tiempo!
No es justo que la acapares todo el tiempo.
Ce n’est pas juste
que tu la gardes pour toi, Myôe.
Não é justo só você ficar com ela!