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...
and you're sad because it 
keeps disappearing, right?
وأنت حزين لأنّه يستمرّ في الاختفاء، صحيح؟
aus deinem Kopf ploppt
und verschwindet.
-y estás triste porque desaparecen, ¿no?
-Sí.
-y estás triste porque desaparecen, ¿no?
-Sí.
et disparaît instantanément, hein ?
e sei triste perché continuano a sparire, giusto?
e que você tá triste porque
elas somem, certo?
а потом исчезает,
и тебе от этого грустно?