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...
Tsu-Tsunami-sama... 
please don't worry about me.
تسو-تسونامي-ساما... لا تقلقي بشأني من فضلكِ
T-Tsunami-sama …
D-Das wäre doch nicht nötig gewesen.
Mme Tsunami…
Tsu-Tsunami-sama... 
non devi preoccuparti per me, ti prego.
Sra. Tsunami...
Não se preocupe comigo.
Что вы, Цунами, не стоило...