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.
The inside of Shiki-san's head
ربما كان عقل شيكي-سان
Shikis Kopf war wohl
Puede que la mente de Shiki-san
Puede que la mente de Shiki-san
Peut-être que l’esprit de Shiki
Talvez a mente da Shiki-san fosse espaçosa
 demais para apenas uma personalidade.