Kakeru enters the soccer club as a provisional member, just as the letter says. When the topic of lunches comes up after practice, Kakeru jokingly asks Naho to make lunch for him as well. Naho finds herself bewildered by his words, but feels pushed to act by the letter from herself 10 years in the future, which tells Naho that she wishes she had made lunch for Kakeru.
Oh, right. I've heard that.
.فهمت. هذا يريكِ مقدار ما أعرفه
Ach so, hab ich mal gehört.
Ah, sí, ya me lo habían dicho.
Ah, sí, ya me lo habían dicho.
Ah oui, c’est vrai. 
On me l’a déjà dit.
Ah, giusto. Me l'avevano detto.
Ah, entendo. 
Acho que já ouvi esse nome.
А, точно. Слышал о нём.