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.
So that's where the name Ein came from.
.هذا هو مصدر اسم آين إذًا
Da kommt der Name Ein also her?
Así que de ahí viene el nombre de Ein.
Así que de ahí viene el nombre de Ein.
C’est de là que vient le nom d’Ein.
È da lì che hai preso il nome per Ein.
Então é daí que veio o nome Ein.
Так вот почему Айна так зовут.