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.
I caught a glimpse of the River Styx 
just now. I might be done for.
.لمحت نهر ستيكس قبل قليل
.ربما انتهى أمري
Ich habe vorhin den Fluss Styx gesehen.
Acabo de ver el río Estigia.
Creo que estoy perdida.
Acabo de ver el río Estigia.
Creo que estoy perdida.
J’ai cru voir le Styx,
j’en ai plus pour longtemps.
Prima ho visto lo Stige.
Per me è la fine.
Acabei de enxergar o Rio Estige.
Acho que é o meu fim.
Я словно упала в реку Стикс. Мне крышка.
ฉันอาจจะหมดท่า.