Chorina:
The Energy of the Floating Sea doesn't fall from the sky.
The easiest way to collect the Energy of the Floating Sea is by stealing it from the monsters around here, including Orfen's Handmaiden.
You can get Seized Energy of the Floating Sea by hunting Aranea, Keros, Falena, Atrofa, Nuba, Torfedo, Lesatanas, Arbor, Tergus, Skeletus, Arimus, Arima, Harane and Atrofine. I need you to bring me 200.