Ruka is hellbent on knowing the full story behind Kazuya and Chizuru's relationship, and once she does she decides to take action.
I remember you talking about 
grandmas and whatnot, but that's all.
أتذكر كلامك عن جدّتك وما شابه، لكن ذلك كلّ شيء
Ich erinner mich da an irgendwas
mit Großeltern und so.
Ecco, ho sentito che parlavi di tua nonna,
Eu lembro que falaram sobre suas avós,
mas só sei até aí.
Я слышала, 
вы встречаетесь из-за бабушки —