Shimamura worries about Adachi when she doesn't come to school the next day after she abruptly left her house. The two girls go out together on the weekend and an unlikely guest joins them.
I'll keep losing pieces of myself
in order to keep myself afloat.
Nach und nach gebe ich etwas auf,
um mich selbst zu erhalten.
Pierdo pedazos de mí misma
para poder mantenerme a flote.
Seguiré perdiendo partes de mí 
para mantenerme a flote.
Je disparaîtrai lentement
pour conserver ma vie actuelle.
Perderò pezzi di me stessa
solo per stare a galla.
Vou perder partes de mim
para me manter de pé.
Чтобы себя сохранять,
я должна понемногу себя терять.