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 heard that if sunlight 
touches you, you die.
سمعت أنه إذا لمست المريض أشعة
الشمس، فإنه يموت
Ich hab gehört, man sterbe davon,
wenn man ins Sonnenlicht geht.
Oí que te mueres si te da el sol.
He oído que te mueres si te da el sol.
Le soleil tue les malades, il paraît.
Ho sentito che se si viene toccati
dalla luce solare si muore.
Me disseram que, se a luz
do sol te tocar, você morre.
Слышал, что от солнца помираешь.