Naho can't give her Valentine's Day chocolate to Kakeru. Ever since what happened on New Year's Eve, Kakeru keeps putting distance between Naho and himself. But, through all the hardships, Naho refuses to give up and fully intends to tell Kakeru how she feels. And so, the time comes for everyone to face the fateful day outlined in the letters from the past, "Kakeru's Final Day."
If it becomes the same future as 
in the letter, there's no point!
ولكن إن أصبح مثل المستقبل الذي
 !في الرسالة فلا يوجد معنى
Wenn es die gleiche Zukunft
wie im Brief wird, gäbe es keinen Sinn!
C’est ce qu’on voulait, 
modifier l’avenir !
Se si avverasse lo stesso futuro delle lettere
 non avrebbe senso!
Se o nosso futuro se tornar o mesmo 
que o da carta, terá sido tudo em vão!
Если будущее не изменится, всё без толку!