Setsuna begins to research soot blight syndrome to understand the shocking statement Rinne makes. The endemic disease keeps the island isolated and toys with Rinne, Karen and Sara’s fates. But Rinne’s mother Kuon knows something unexpected.
I don't even know what 
I'll regret and what I won't.
لا أعرف حتّى ما الذي سأندم عليه
وما الذي لن أندم عليه
Dabei habe ich keine Ahnung,
was ich selber bereuen werde
Ni siquiera sé lo que lamentaré
después y lo que no.
Ni siquiera sé
Je sais pas ce qui me fera
éprouver des remords
Non so nemmeno cosa potrei rimpiangere e cosa no.
Eu nem mesmo sei do que
vou me arrepender ou não.
А вот о чём могу раскаиваться я,