The ghost that suddenly appeared on the ship is Masaki's astral body.
After Jovia creates her body, Masaki leaves to check on her tree's grafting.
With the island's formation ongoing, 
Seina suggests that Tsukiko spends time in Kamidake's magic unit...
you're so nonchalantly 
the cruelest one here!
!أنتِ الأقسى هنا
Y a pas plus cruel que toi, ici !
parli con tale indifferenza 
da essere tu la più crudele qui!
Você falar isso tão despreocupada
é a maior crueldade!
Ты определённо самая жестокая!