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...
You mean you don't know?
أتقصد أنّك لا تدري؟
Ist dir das etwa nicht bewusst?
¿Quieres decir que no lo sabes?
¿Quieres decir que no lo sabes?
Tu me demandes ça sérieusement ?
Vuoi dire... che non te ne rendi conto?
Você não percebeu?
А ты сам разве не знаешь?