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...
That's part of the treatment 
I prescribed for him—
—ذلك جزء من العلاج الّذي وصفتُ له
Ah … Das habe ich ihm
als Teil seiner Behandlung …
Es parte del tratamiento que le receté.
Es parte del tratamiento que le receté.
C’est le traitement
que j’ai décidé de…
È parte del trattamento che gli ho prescritto—
Eu deixei que fizesse isso
como parte do tratamento—
Это является частью лечения,
которое я выписал...