Jun decides to help Shiena with her studies, which drives Naori crazy. Rumi, on the other hand, seems unusually indifferent about it. However, for Naori, it's clear that she needs to keep an eye on them. So, she quickly invites herself along.
She was bitching and moaning
 for a while, though.
.ولكنّها كانت تتذمر قليلًا
Hat nur ein wenig rumgemeckert …
Aunque estuvo de malas un rato.
Aunque estuvo un rato de mal humor.
Enfin, elle a quand même râlé.
Però si è lamentata molto.
Mas ficou reclamando bastante.
Хотя сколько можно ныть.