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?
to still have this regret ten years later!
!أن تبقي هذا الندم بعد عشرة سنوات
nicht 10 Jahre
mit mir rumtragen.
no quiere arrastrar
 esa culpa durante 10 años.
no quiere arrastrar
 esa culpa durante 10 años.
ou dans dix ans, 
je ne veux avoir aucun regret.
non vuole sopportarlo per dieci anni.
Esse arrependimento
 pelos próximos dez anos.
не хочу сожалеть об этом через десять лет!