Kakeru gives Naho a hairpin. And on the weekend, Kakeru invites Naho to study with him for the upcoming exams. As the pair begin to grow closer together, Naho gets up the courage to invite Kakeru to see the fireworks together with her at the end of the school festival.
But if the past is changed 
by sending that letter,
،ولكن، بتغيير الماضي خلال إرسال تلك الرسالة
Aber wenn sich die Vergangenheit
mit einem Brief ändern lässt,
Mais si le passé a changé 
grâce à cette lettre,
Ma se mandando la lettera
 il passato è cambiato,
No entanto, se o passado está
 mudando por causa da carta,
Но если отправить письмо
и изменить прошлое,