Up until now, Naho had been doing everything the letter from the future had told her to do, but is the letter always right? The letter from the future asks Naho to make sure Kakeru doesn't run the relay race at the athletic festival, but what does Naho decide to do?
the future may change significantly.
.فقد يتغيّر المستقبل بشكلٍ كبير
ändert sich die Zukunft immens
l’avenir sera grandement modifié
il futuro cambierebbe drasticamente.
o futuro mudaria 
drasticamente, e talvez
будущее может сильно измениться.