In the process of investigating Director Shindou's murder, Nishinosono and Saikawa learn the details of Shiki's multiple personalities and the murder of her parents that took place 15 years ago. The two of them try to figure out what she was thinking in order to find a clue.  In doing so, Nishinosono is forced to confront her own past.
I don't know what to say about 
what happened yesterday.
.لا أعلم ما أقول عن ما حدث البارحة
Was soll ich zu den
gestrigen Vorfällen sagen?
No sé qué decir sobre lo que pasó ayer.
No sé qué decir sobre lo que pasó ayer.
Je ne sais pas quoi dire,
à propos d’hier.
Possiamo parlare di ciò che è successo ieri?
Não tenho nem palavras sobre 
tudo o que aconteceu ontem...