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.
Don't suddenly get all 
friendly with each other!
!لا تتصرّفن بودّ معًا فجأة وببساطة هكذا
Steckt nicht einfach sofort
einmütig die Köpfe zusammen!
Commencez pas
à l’inclure dans nos plans !
Non diventate tutte amiche all'improvviso!
Não fiquem tão amiguinhas de repente!
Почему вы болтаете с ней как с родной?