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...
She is an Ancient Dryad, a tree fairy.
إنّها حوريّة غابة قديمة، جنّية شجرة
Sie ist eine alte Dryade – ein Baumgeist.
Es una Ancient Dryad.
Un espíritu de los árboles.
Es una Ancient Dryad.
Un espíritu de los árboles.
C’est une dryade ancienne.
Une fée des arbres.
È una Driade Antica, una fata degli alberi.
Ela é uma Ancient Dryad.
Uma fada da árvore.
Она из рода древних дриад, лесная фея.