Kuro's classmate Aona is troubled by the popcorn that keeps popping out of his head. Aona says it makes him sad when the popcorn disappears, so Ramune lends him a bag that can be used to store the popcorn. Why is Aona's head producing popcorn, and why does he feel sad when it disappears? Ramune tells Aona that the treatment method will become clear if he asks himself those questions...
She's sad because you won't stop 
making things and playing with them.
.إنّها حزينة لأنّك لا تنفكّ عن صنع الأشياء واللّهو بها
Das ist, weil du immer
allerlei Sachen kreierst und herumspielst.
Está triste porque no dejas
de hacer cosas y jugar con ellas.
Está triste porque no dejas
de hacer cosas y jugar con ellas.
Elle est triste parce que tu fabriques
toutes ces choses
È triste perché non vuoi smettere 
di creare oggetti e giocarci.
Você cria um monte de coisa e não para
de brincar! Por isso ela ficou triste.
Ей грустно из-за того, что ты постоянно
мастеришь для себя какие-то игрушки.