It's the last day of the school festival. Naho and Kakeru have promised to watch the fireworks together. However, just before they start, Ueda-sama gets in Naho's way. Will Naho get to experience watching the fireworks with Kakeru like her future self did?
The biggest one is what happened 
the day of the opening ceremony.
.ولكنّ أكبر ندم هو ما حدث يوم الحفل الافتتاحي
Aber am meisten wohl
den Tag des Schulstarts.
mais le plus gros 
est le jour de la rentrée.
Ma il più grande riguarda
 il giorno della cerimonia di apertura.
Acho que o maior arrependimento
 é o do dia da cerimônia.
И больше всего о первом дне в школе.