Time has passed since the incident at Magata Labs, and Saikawa and Nishinosono's daily life is returning.  Then one day, Shiki visits Saikawa at the university library..
I don't know that.
.لا أعرف ذلك
Das weiß ich nicht.
Eso no lo sé.
Eso no lo sé.
Ça, je n’en sais rien.
Questo non lo so.
Isso eu já não sei.