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...
and if you seek one like him, 
they shall not be found.
Suchst du jemanden, der ihm gleicht,
 wirst du niemanden finden.
y si buscas a alguien como 
él, no lo encontrarás.
Si buscas a alguien como 
él, jamás lo encontrarás.
Il est vain de chercher
 quelqu’un lui ressemblant.
e sairá de mãos vazias quem tentar encontrá-lo.