The lab maintenance is finished and the system comes back online. The police come to the island, but the investigation has made no progress. At last, however, Saikawa solves the mystery of the locked room and prepares to confront the culprit.
It existed because of someone who 
was always locking the door.
.تواجد ميتشيرو بسبب شخصٍ كان دائمًا ما يقفل الباب
Er existierte, weil immer jemand
abgeschlossen hat.
Michiru existía porque había alguien 
que siempre cerraba la puerta.
Michiru existía porque había alguien 
que siempre cerraba la puerta.
Il était là parce que quelqu’un
fermait toujours à clé.
Ela foi criada porque existia alguém que
sempre acabava trancando a porta.