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...
Don't say such backstabby things.
لا تقل كلاماً طاعناً
Non pugnalarmi alle spalle
 dicendo queste cose.
Sem me apunhalar pelas costas.
Ты сейчас говоришь как предатель.