After Yui's death, Takuru's family tries its best to recover. Kurusu makes a shocking admission to Takuru that she's been hiding something from him ever since he met her.  She's willing to do anything to find the killer, and she's getting very, very close...
Well, I guess if we knew that,
it would be too easy.
أعتقد أنّنا إذا عرفنا الدّافع فسيغدو الأمر سهلاً
Enfin, le découvrir
ne résoudra pas nos problèmes.
Beh, se capissi qual è, non mi darei tanta pena.
Bem, acho que seria fácil 
demais se soubéssemos disso.