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..
The answer is "to go outside."
".الجواب هو "للذهاب إلى الخارج
Die Antwort ist,
weil ich rauswollte.
Lo hice para salir.
Lo hice para salir.
Pour pouvoir m’échapper.
La risposta è... per uscire.
A resposta é "pra poder
 sair do laboratório".