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...
Popcorn is made by heating hard seeds,
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Bei Popcorn ist es so: Wenn man
den harten Samen erhitzt,
Las palomitas se hacen
calentando semillas duras,
Las palomitas se hacen
calentando semillas duras,
Quand on fait chauffer
du maïs à popcorn,
I pop-corn si preparano scaldando dei semi duri,
A pipoca é resultado do aquecimento
de sementes duras,
Попкорн готовится путём
нагревания кукурузных зёрен,