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...
If there's anything else you need, tell me.
Wenn ihr noch was braucht, sagt es mir.
Si hay algo más que necesites, dímelo.
Si quieres algo más, dímelo.
Si tu veux quelque chose,
demande-moi.
caso deseje alguma coisa, é só me dizer.