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.
If you know the mechanisms 
involved, it's super easy!
!إن عرفتِ الآليّة المستعمل، يصير الأمر سهلاً
Wenn man ihren Aufbau kennt,
ist das ganz einfach!
Si te sabes los mecanismos,
 es muy sencillo.
Si te sabes los mecanismos,
¡está chupado!
Fastoche, quand on connaît le truc !
Se sai come funzionano è super facile!
Sabendo os mecanismos, é moleza!
Если знать её устройство — 
проще простого!