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."
I felt like I knew you, but I really 
knew nothing about you at all.
أشعر أنّي أعرفك، لكنّي لا أعرفك على
 .الإطلاق في نفس الوقت
Ich dachte, dass ich dich kenne
und wusste eigentlich nichts.
Creía saberlo todo de ti,
pero no sabía nada.
Creía saberlo todo de ti,
pero no sabía nada.
Je pensais te connaître, 
mais j’ignore tout de toi.
Pensavo di conoscerti,
 ma in realtà non avevo capito nulla di te.
Eu achei que o conhecia, mas a verdade 
é que eu não sei nada sobre você.
Мне казалось, что я тебя знаю,
но оказалось всё иначе.