Greece was the centre of all the Pantheons, atop Mt. Alymepeii stood the great academy of Exaimistís, known to be the birthplace of great warriors known as vassals; people possessed by the soul of the gods and given the abilities of the being itself.
I'm quite amazed by your idea of connecting mythologies from all over the world into school life stories and battles, it's like Boku no Hero Academia but with Gods and Goddesses than quirks...
Hmmmmm.... ............ ............ Interesting.......... ................ ...... P/s: just want to have 140 words though