Out of curiosity, the team attempts different methods to try and get Kei's memory to come back, but not a single one seems to work. However, the next day...
What was that sound?
‫ما هذا الصوت؟
Was war das für ein Geräusch?
¿Qué fue ese sonido?
¿Qué ha sido ese sonido?
C’est quoi, ce bruit ?
Che cos'è stato quel boato?
Que barulho foi esse?
Это что за грохот?!