It’s the spring of Naho’s second year in high school, and Naho receives a letter from herself, 10 years in the future. The letter accurately depicts what’s about to happen, including details on a transfer student from Tokyo, Kakeru Naruse, who ends up sitting beside her in class. On top of that, the letter also begs Naho not to invite Kakeru out with her group of friends on that day alone, but why?
In this letter, I'll chronicle the events that are about
to happen and the choices I want you to make, 
so you don't repeat my mistakes.
في هذه الرسالة، سأعطيك وقائع الأحداث التي على وشك
 ،الحدوث والخيارات التي أريدكِ أن تصنعينها
 .لكي لا تعيدي أخطائي
Damit sich meine Fehler nicht wiederholen, schreibe ich dir,
was passiert und wie du dich entscheiden musst.
Para que no repitas mis errores,
te escribiré todo lo que sucederá
y qué caminos quiero que tomes.
Para que no repitas mis errores,
te escribiré todo lo que sucederá
y qué caminos quiero que tomes.
Je t’ai noté ce qui va arriver 
et les choix à faire 
afin de ne pas commettre 
les mêmes erreurs que moi.
In questa lettera scriverò in ordine cronologico
 gli avvenimenti che accadranno e la scelta 
che vorrei tu prendessi per me, 
così da non ripetere gli stessi errori.
Para que você não cometa os mesmos erros que eu,
deixarei escrito nesta carta algumas coisas
que vão acontecer e as escolhas que eu desejo que
você faça quando elas acontecerem.
В этом письме я расскажу о грядущих событиях и выборе, 
который ты должна сделать, чтобы не повторить мои ошибки.