Here's the idea: The Pony Parthenon(Basically ponified Roman/Greek gods) is real, and they do have 'consorts' with mortals, you are the product of one of those relationships. You find your self in a camp for kids like you(Yes, ponified Camp Half-Blood for those wondering). You then go off on different divine adventures, what do you think?
I'm actually probably going to randomly assign you godly parents, that way there isn't a bunch of Zues, Posiden, etc, and none of the others