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 you don't believe it'll work,
we won't put your letter in.
.لن ندرج رسالتك إن كنت لا تصدّق يا هاغيتا
Wenn du daran nicht glaubst,
schmeißen wir deinen Brief nicht rein.
Si no crees que funcione,
no pongas tu carta.
Si no crees que funcionará,
no pongas tu carta.
Si tu n’y crois pas, 
je n’enverrai pas ta lettre.
Se non ci credi, 
allora non inseriremo la tua lettera, Hagita.
Já que você não acredita, não 
precisa enviar uma carta, Hagita.
Если не веришь, что выйдет,
можешь не писать письмо.