Due to their mutual interest in light novels, Isana considered Mizuto a dear friend. However, Yume and Akatsuki make her realize that her feelings for him may run much deeper than that. Now aware of her true feelings, Isana wishes to become Mizuto's girlfriend. Unfortunately, he doesn't seem to be reacting to her advances. Yume and Akatsuki try to give her advice, but it doesn't quite go according to plan.
Even though I'm nothing but 
a stepsister to you now...
...رغ أنّني لستُ إلاّ أختك غير الشّقيقة الآن
Auch wenn ich jetzt nur noch
eine Stiefschwester für dich bin …
Aunque ahora no soy
más que tu hermanastra…
Aunque ahora no soy
más que tu hermanastra…
Après tout,
Anche se ormai per te sono solo una sorellastra...
Mesmo que eu não seja nada além de
uma meia-irmã para você agora...
Я ведь теперь всего лишь
твоя сводная сестра.