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.
I meant to give it to you 
at lunch time, but I couldn't.
.كنت أنوي إعطاءك إيّاه وقت الغداء، ولكنّي لم أستطع
Eigentlich wollte ich sie dir zu Mittag geben,
aber ich hab’s nicht gemacht!
Quería dártelo a mediodía, pero no pude.
Quería dártelo a mediodía, pero no me atreví.
J’ai voulu te le donner à midi, 
mais je n’ai pas réussi.
Volevo dartelo per pranzo, ma non ce l'ho fatta.
Eu pretendia entregá-lo na hora
 do almoço, mas não consegui!
Я хотела дать его тебе
 на перемене, но не смогла.