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...
Actually doing something this absurd is
إنّ القيام بشيء فهذه السّخافة في الواقع
In Wahrheit schaffen sonst nur die Philosophen
der Akademie solch absurde Dinge.
Solo i filosofi dell'accademia 
potevano immaginare
Na verdade, fazer algo absurdo assim