The DIY club holds a celebration at their newly completed secret hideout. Then summer vacation starts and Jobko heads home, promising she’ll see everyone again. Purin takes Serufu to the DIY club, saying that the secret base is still missing something.
And if we gather things 
that others don't need...
...وإن جمعنا أشياء لا يحتاجها الآخرون
Und Baumaterial sammeln,
das andere nicht mehr brauchen.
Y si recolectamos cosas
que nadie quiere…
Y si recolectamos cosas
que nadie quiere…
Vous récupérerez aussi
des vieux matériaux.
E se raccogliamo cose 
che agli altri non servono più...
E se coletarem coisas que
os outros não precisam...
Или собирать у людей
ненужные вещи...