Chapter 10:
The Station Opening, the day when everyone in the city gets rid of what they don't need, begins, and a cup that is very important to Yase is thrown away.
Chapter 11:
Yase has lived her whole life surrounded by things that remind her of her mother, and Koto tries to get her cup back, but...
Chapter 12:
Koto tries to fix things between Kurama and Yase, and feels a connection to her mother between them.
I suppose that getting 
rid of what we don't need
Um zu Entsorgen, was wir nicht brauchen,
Supongo que librarnos de las 
cosas que no necesitamos
Pero supongo que librarnos de ellas
Mais se débarrasser des objets inutiles
avec l’ouverture de la gare
Acho que usar a abertura de
estação para nos livrarmos