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 suppress one thing, something 
else will express itself in its place.
.إن قمعت شيئًا، فسيعبّر شيء آخر عن نفسه محلّه
Si suprimes una cosa,
otra se expresará en su lugar.
Si suprimes una cosa,
otra se expresará en su lugar.
Quand on réprime quelque chose,
Se sopprimi qualcosa,
 finirai per esprimerlo in una forma diversa.
Se você reprime algo, outra coisa
se expressa no lugar disso.
То, что сдерживается, обязательно
проявится потом каким-то иным образом.