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.
Your hobby is housework? 
You don't hear that every day.
هوايتك هي العمل المنزلي؟
Der Haushalt ist dein Hobby?
Das hört man nicht oft.
¿Ese es tu pasatiempo? Qué inusual.
¿De verdad es tu afición? Qué raro.
Le ménage comme passe-temps ?
Il tuo hobby sono le faccende?
Questa mi mancava.
O seu hobby é tarefas domésticas?
Увлекаешься работой по дому?
Редко такое услышишь.