The letter of acceptance arrives to Ashito in Ehime. Ashito and his friends are overjoyed at the news, but Noriko, Ashito’s mom, looks at the celebration with mixed feelings. Hana tells Ashito to have a heart-to-heart with Noriko, but he never gets the chance until the day of his departure.
There's probably a letter 
inside this envelope.
.لا بدّ أنّ هناك رسالة داخل هذا المغلّف
Da ist sicher ein Brief drin.
Seguramente haya una carta
dentro del sobre.
Seguramente haya una carta
dentro del sobre.
Cette enveloppe
contient sûrement une lettre.
Probabilmente, dentro quella busta c'è una lettera.
Deve ter uma carta aí dentro...
Судя по форме…
внутри, скорее всего, письмо.