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'd better not swing your 
weapon around in here!
Behalt deine Waffe bloß bei dir!
¡Más vale que no uses tu arma por aquí!
¡Más te vale no usar tu arma por aquí!
Tu n’as pas intérêt
à brandir ton marteau ici !
Não fique brandando sua arma por aqui!