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.
Asking won't help narrow it down.
.لا أعلم إن سألتني ذلك
Würdest du eh nicht kennen.
No lo entenderás aunque te lo diga.
No lo entenderías aunque te lo dijera.
C’est compliqué…
Se non li conosci è inutile che ti faccia la lista.
Mesmo que eu te responda,
 você não vai entender.
Вопросы не помогут.