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...
If you put your popcorn in 
here, it won't disappear.
.لن يختفي الفشار إن وضعته فيها
Wenn du das Popcorn hier drin aufbewahrst,
wird es nicht mehr verschwinden.
Si metes las palomitas allí,
no desaparecerán.
Si metes las palomitas ahí,
no desaparecerán.
Si tu y mets le popcorn qui sort,
il ne disparaîtra pas.
Se metti qui dentro i tuoi pop-corn, 
non spariranno.
É só colocar as pipocas nela, e não precisa
se preocupar de desaparecerem.
Если положишь в него свой попкорн,
он не исчезнет.