Kouki Kokoro, who says to call her Shii, suddenly drops in on the DIY club and asks if she can join. Everyone except Kurei happily accepts her. When Shii says she’ll be helpful because she’s stronger than anyone there, Kurei challenges her to prove it.
As to whether they're usable...
...أمّا إن كانت صالحة لإعادة الاستعمال
Aber ob wir sie wirklich
brauchen können?
Reste à voir si ça servira.
Per quanto riguarda l'utilizzo...
Não sei se vão servir.
Но можно ли их использовать...