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.
She took on the role of 
referee like it was nothing!
!أخذت دور الحكم بدون أيّ تردّد
Sie spielt ganz umstandslos
die Schiedsrichterin!
Elle a pas hésité à arbitrer !
Ha assunto spontaneamente il ruolo di arbitro!
Ela nem pensou pra virar árbitra!
Она уже взялась быть судьёй!